1 :01x01 - Season 1, Episode 1

2 :01x02 - Season 1, Episode 2

3 :01x03 - Season 1, Episode 3

4 :01x04 - Season 1, Episode 4

5 :01x05 - Season 1, Episode 5

6 :01x06 - Season 1, Episode 6

7 :01x07 - Season 1, Episode 7

8 :01x08 - Season 1, Episode 8

9 :01x09 - Season 1, Episode 9

10 :01x10 - Season 1, Episode 10

11 :01x11 - Season 1, Episode 11

12 :01x12 - Season 1 Finale

13 :02x01 - Season 2, Episode 1

14 :02x02 - Season 2, Episode 2

15 :02x03 - Season 2, Episode 3

16 :02x04 - Season 2, Episode 4

17 :02x05 - Season 2, Episode 5

18 :02x06 - Season 2, Episode 6

19 :02x07 - Season 2, Episode 7

20 :02x08 - Season 2, Episode 8

21 :02x09 - Season 2, Episode 9

22 :02x10 - Season 2, Episode 10

The guys open up and share their dreams before all five remaining contestants take on a nightmarish endurance challenge. By wrapping their arms and legs around a one-foot diameter tube suspended before them above a swimming pool, they hang on as long as they can. The last one to fall makes a splash as the winner of this event.

23 :02x11 - Season 2, Episode 11

During the last episode taped at the ranch, the final four contestants discover how far they have come in terms of weight loss and exercise by doing the same workout from their first day at the ranch. For their challenge, they have enough quarters to equal the weight they have lost since the first episode placed on their backs. Weighted with coins, they must scale the side of the building, and then make a second trip up the side minus the extra weight. The contestant with the most improved time between the climbs wins, and even gets to keep their quarters.

24 :02x12 - Season 2 Finale

After weeks of training and careful eating, it comes down to choosing "The Biggest Loser" in this special two-hour, live season finale. Only three contestants remain in the contest to see who has the biggest percentage of weight-loss. The winner will be chosen during the live portion of the telecast.

* Two-hour episode

Special Edition: The Muhas Vs. The Samuels

The Muha family will battle the Samuels family in hopes of winning a $50,000 prize. The Biggest Loser: Special Edition brings back trainers Jillian and Bob to help two families desperate to change their lives. The two families will face the emotional, life-changing events that initially caused their weight gain, as well as a dessert challenge where the families must work together to carry ice cream boats across the desert to win great prizes. In the last hour of the special, the family with the highest percentage of weight loss will be the winners.

Special Edition: Engaged Couples (1)

The Biggest Loser: Special Edition series continues with engaged couples, Steve & Sarah versus Edwin & Rasha. Both couples visit trainers Jillian and Bob at the ranch for a chance to change their lives and lose weight before their wedding days. The teams face a variety of challenges and temptations during their stay, including the chance to find $10,000 worth of wedding bands by eating wedding cake and searching among limos to find hidden money.

Special Edition: Engaged Couples (2)

The weight-loss battle continues at home with engaged couples Steve and Sarah and Edwin and Rasha. Not only do the couples have to continue the lifestyle change that they learned at the ranch, but they also must plan their wedding days.

Before one couple wins the grand prize of a $50,000 dream wedding, they will encounter many surprises along the way including a visit from a season one contestant. The couple with the highest percentage of weight loss will be the winners.

Italian Vs. Diner (1)

Italian Vs. Diner (2)

This episode continues in the second hour when both the 'Little Italy Family' and the '50's Diner Family' return to face their previous lives of fattening foods. Both families are thrilled when they discover new gym equipment and refrigerators filled with healthy food right in their own homes.

Tension breaks out between trainers Bob and Jillian and their respective families when disappointing results and unhealthy decisions surface. One family member gets some exciting news that changes her life and after the final weigh-in, one family walks away with $50,000.

Engaged Couples

In this special two hour episode of the The Biggest Loser, engaged couples, Bruce and Kimmi from Los Angeles will go head-to-head with Nick and Lael from Hawaii for the chance to win a $50,000 dream wedding. Both couples will be will struggle to complete their wedding cake challenge. Before going home after just 12 days at the ranch, each couple will have to weigh in for the chance to win a honeymoon vacation.

In the second hour, both couples head home to continue the lifestyle changes that they learned from Bob and Jillian before their return to the ranch for their final weigh in.

Military Wives (1)

Navy and Marine wives compete against each other to see who can lose more weight. In one of their first challenges, they also vie to win a free nanny for a week.

Military Wives (2)

In this finale hour of the military battle, the wives return to their regular lives and the challenging home environments where they must stick to the diet and exercise that they learned at the ranch. One team gets a surprise visit from a personal chef to help them stick to their meal plan.

Meanwhile, the Navy wives head to Hawaii to greet their husbands naval ship after being separated from them for six months. After receiving current photos of their competition, both teams realize they must kick it into high gear in order to beat their competition. Both teams will head back to the ranch for the final weigh in where one team will take home the $50,000 grand prize.

The Tofanellis Vs. The Stephens

Two familes are given the chance to lose weight and change their lives forever. Each of the teams struggle with medical conditions caused by their obesity and hope that trainers Bob and Jillian can make a difference in their health. The teams are confronted with a sandbag challenge where each family will have to carry two tons of sand in hopes of winning brand new mountain bikes. Before heading home, each family will weigh-in to see which team has the greatest percentage of weight lost. The winning family will get a vacation at the Westin Maui Resort and Spa in Hawaii.

25 :03x01 - Season 3, Episode 1

50 contestants, who represent every state in the U.S., learn who will stay at the ranch and who will leave to compete from home. First up: the two teams partake in a wall-scaling contest.

26 :03x02 - Season 3, Episode 2

In a special two-hour episode, the contestants get a taste of life away from the ranch with a trip to the beach. The teams quickly learn that it isn't all fun in the sun after Bob and Kim put them through a series of grueling workouts in the sand. At the challenge, the teams will fight for the chance to receive care packages from their families by building mountains of sand in order reach a team flag. Meanwhile, one contestant receives devastating news from home that could force them to leave the ranch.

27 :03x03 - Season 3, Episode 3

This week the teams must battle the buffets while going on a luxury cruise vacation. Bob and Kim show the teams how to make healthy food choices and work exercise into a vacation. During the challenge contestants will deliver room service orders all over the ship for the chance to win time with their loved ones. Each week the teams find out how much weight they have lost during the weigh-in and the losing team must send one of their own home from the ranch.

28 :03x04 - Season 3, Episode 4

Fresh off their disappointing week, the red team finds themselves falling apart mentally under the pressure. Kim gets frustrated with her team after they refuse to follow her lead. During the temptation, the players try their hand at winning a free pass that will save them from being eliminated. The stakes get higher at the escalator challenge when the teams find out they are playing for $10,000. Each week the teams find out how much weight they have lost during the weigh-in and the losing team must send one of their own home from the ranch.

29 :03x05 - Season 3, Episode 5

With the teams even, the players are shocked when they discover that the gym is locked for the week. Bob and Kim use the opportunity to show the teams that they can workout anywhere without using the gym. At the challenge, the blue team hopes to break their losing streak by winning "the wave" challenge at the Los Angeles Coliseum. Before they start the challenge both teams watch inspiring messages from home.

30 :03x06 - Season 3, Episode 6

After back-to-back losses, one team must step it up in order to keep their team together. During the temptation, the teams must guess the calorie content of various restaurant foods. The losing team will lose their trainer and have to order takeout for 72 hours. For the high flying challenge, teams will have the chance to win a gourmet meal or an intense pool work out at the Bel Age Hotel on the Sunset Strip.

31 :03x07 - Season 3, Episode 7

Caroline delivers shocking news to the teams when she announces that the red and blue teams are gone. One player will have the power to decide who will compete together as a duo. The duos must work together in an exhausting fire challenge in order to win a video phone call home. In an emotional weigh-in, the teams are shocked when an entire duo goes home.

32 :03x08 - Season 3, Episode 8

Caroline shocks the duos when she tells them that some of the 36 state contestants are back to weigh-in for the chance to rejoin the competition. Two players rejoin the game, but they struggle to keep up with Bob and Kim's training. At the challenge, everyone has a "ton of fun" moving thousands of pounds across a huge warehouse.

33 :03x09 - Season 3, Episode 9

The contestants learn that they will be competing as individuals. Also, they receive a makeover and participate in a photo shoot. The challenge involves riding a stationary bike 30 feet in the air.

34 :03x10 - Season 3, Episode 10

The contestants learn how to cook a tasty but healthy Thanksgiving dinner. For the challenge, the players must wear weights and run around a racetrack for the chance to win a visit with a family member.

35 :03x11 - Season 3, Episode 11

Bob, Kim and season two winner Matt Hoover tackle the ever growing problem of childhood obesity when they head to their high schools to teach kids about proper exercise and nutrition. While checking out the school cafeteria, Bob and Kim chat with the school lunch ladies about replacing the unhealthy options. The trainers also find the time to inspire a few really needy kids to make a lifestyle change. The kids will be challenged to go home and change their unhealthy habits while educating their entire families with all they have learned.

36 :03x12 - Season 3, Episode 12

It's the final week at the ranch and emotions run high as the contestants prepare to return home. In the final challenge, the players decide to compete as a team in a "Biggest Loser" triathlon. After the elimination, the remaining four contestants say goodbye to their trainers and return to their families to see if they can continue losing weight on their own.

37 :03x13 - Season 3 Finale

The winner of the $250,000 grand prize is chosen from the final four. Also, the original 50 contestants return for a reveal of their new bodies.

Where Are They Now?

Revisiting 13 past contestants, who weigh in and report on their progress since the show.

38 :04x01 - Season 4, Episode 1

Eighteen contestants are dropped in the middle of the desert as Season 4 begins. This year, in addition to the usual red and blue teams (trained by Kim Lyons and Bob Harper, respectively), a secret black team is formed, trained by Jillian Michaels.

39 :04x02 - Season 4, Episode 2

The immunity challenge has the red and blue teams racing up the stairs of a 10-story building. Then, the secret black team is revealed in the weigh-in room, creating a three-way competition.

40 :04x03 - Season 4, Episode 3

The teams are given a food temptation competition, and given four minutes to decide whether or not they want to consume the most calories in exchange for a three-pound pass at the weigh-in. During the physical challenge, the contestants must complete three different 100-meter heats against a team of three kids.

41 :04x04 - Season 4, Episode 4

During the food temptation, the trainers are tested alongside the contestants. If Bob, Kim or Jillian give in to a temptation, their team receives a 15-second advantage in the physical challenge. For the physical challenge, the contestants must race up and down a hill to their team flag.

42 :04x05 - Season 4, Episode 5

The teams are surprised with an exotic getaway, but they soon learn their vacation is more work than play. Their physical challenge is unlike anything they have had to face before, and in the end one person is sent home.

43 :04x06 - Season 4, Episode 6

The remaining teams compete in a special challenge testing the contestants' perseverance, with the winning team getting a surprise from home. After the weigh-in, one contestant is sent home.

44 :04x07 - Season 4, Episode 7

The contestants play a version of poker, and the winner gets a prize that will change the game. After a dramatic weigh-in where one contestant shocks the others with their weight, one contestant is eliminated.

45 :04x08 - Season 4, Episode 8

The trainers and contestants try to move on following last week's surprising game play. The physical challenge tests the contestant's endurance, with the winning team getting control of this week's competition. Later, one player is eliminated.

46 :04x09 - Season 4, Episode 9

The teams go green and learn how to incorporate environmentally friendly habits in their lives. This week's physical challenge also incorporates recycling, with the winners receiving Ford Escape hybrids.

47 :04x10 - Season 4, Episode 10

Players begin competing as individuals, and are faced with a temptation where one players is overcome by the donuts. Later, they compete in a triathlon challenge, and the winner gets to go home for 24 hours.

48 :04x11 - Season 4, Episode 11

The contestants head to the set of Days of Our Lives soap opera, where friends and family wait to surprise them.

49 :04x12 - Season 4, Episode 12

The viewers will choose this week's challenge for the seven remaining contestants.

50 :04x13 - Season 4, Episode 13

The remaining six contestants are put to work in a pizza place. Later, they participate in a contest involving punching.

51 :04x14 - Season 4, Episode 14

The five remaining contestants look back at their hard work up to date before one more is released from the show.

52 :04x15 - Season 4 Finale

In the live finale, The Biggest Loser contestants from this season return for a chance to weigh-in one more time. Later, one of the final four is named the season's Biggest Loser.

53 :05x01 - Season 5, Episode 1

Season Five begins with the introduction of new contestants, who this time will work in pairs instead of individually. Among the teams are brothers, best friends and ex-partners who will be coached by Bob Harper and Jillian Michaels.

54 :05x02 - Season 5, Episode 2

The nine remaining pair of contestants are tempted by the smells from a barbecue buffet, and learn that Jillian and Bob will be training them together. Also, a challenge involving a seesaw.

55 :05x03 - Season 5, Episode 3

Rifts form between the contestants as the eight teams vie for immunity.

56 :05x04 - Season 5, Episode 4

Three teams begin to second guess themselves when a plot to throw the weigh in is engaged. Next, one of the pairs has set themselves apart from the pack, while the challenge includes a reward of letters from home.

57 :05x05 - Season 5, Episode 5

The contestants are put through an escalator challenge in which the results change the face of the game. Also, this weeks temptation is a tap full of soda pop, and when a team fights back to clear their name when accused of being lazy.

58 :05x06 - Season 5, Episode 6

The contestants compete in a cook off challenge, judged by chef Rocco DiSprito, who prepares a special meal for the winning couple. Also, an injury is suffered by one of th strongest competitors, and one competitor is surprised by a special visitor.

59 :05x07 - Season 5, Episode 7

Each contestant gets a health improvement update from their doctors. Also, a visit from Jillian's mom, a psychotherapist, who delves into the past of each contestant to uncover what issues may have caused their weight gain.

60 :05x08 - Season 5, Episode 8

The teams are without Bob and Jillian for the first time as they each go home and must train on their own.

61 :05x09 - Season 5, Episode 9

One lucky team wins a trip to Las Vegas. The elimination round takes a twist when one contestant makes an unexpected sacrifice.

62 :05x10 - Season 5, Episode 10

The contestants fly over a ravine on a zip line for this weeks challenge. Meanwhile, the outcome of one player's game may be determined by the immunity challenge.

63 :05x11 - Season 5, Episode 11

The eliminated contestants come back to join the six remaining players for a special weigh in. The male and female who have lost the most weight between those previously eliminated are invited to return.

64 :05x12 - Season 5, Episode 12

65 :05x13 - Season 5, Episode 13

The six remaining contestants compete in a pop quiz for a prize. The challenge finds the players giving extra calories to their opponents.

66 :05x14 - Season 5, Episode 14

The five remaining contestants are headed to Australia as a surprise. they will be challenged to race around Sydney and then make it to the top of Sydney Harbour Bridge.

67 :05x15 - Season 5, Episode 15

The final week on campus finds the four remaining contestants to train themselves, and chef Rocco DiSpirito serves up more cooking secrets.

68 :05x16 - Season 5 Finale

It's a special reunion as the contestants are weighed in one last time to show just how much weight they have lost since this journey began. A contestant is voted off and joins the 16 others for a chance at winning the $100,000 "at home" prize. Finally, the remaining three will find out who was voted as the biggest loser and the winner of $250,000.

69 :06x01 - Season 6, Episode 1

This season's family theme finds husbands and wives versus their adult children. The contestants receive a surprise at home when trainers Bob Harper Jillian Michaels show up in their home, which is followed by their first challenge, an extreme walk uphill in excruciating heat.

70 :06x02 - Season 6, Episode 2

Rocco DiSpirito gives away some secrets on creating healty yet affordable meals. Meanwhile, the contestants must determine what percentage of weight they will lose during their stay on the show. The winners of the challenge will receive a phone call home.

71 :06x03 - Season 6, Episode 3

The contestants are taken for a road trip to the Grand Canyon, along with a temptation challenge at a convenience store. While at the landmark site, the contestants must figure a way to work out since there is no gym nearby. The families compete in a kayak challenge for prizes, and one member will need help from the medical staff by the end of the trip. The weigh-in proves to be a surprise shake up and cause a difficult elimination.

72 :06x04 - Season 6, Episode 4

Part 1 of a 2 part episode finds one contestant being rewarded with a trip home for a visit, as the others are set to spend 24 hours with a personal trainer. Meanwhile, the teams are given an endurance challenge, in which one team is chastised for slacking off.

73 :06x05 - Season 6, Episode 5

The conclusion finds that some of the contestants have picked up the pace of their workout to please their trainer. Later, a contestant confides in a trainer about her family issues.

74 :06x06 - Season 6, Episode 6

This episodes temptation test involves the contestants being left in the dark with fresh baked goods, with the winner receiving considerable power which may change the face of the game. Later, the contestants are challenged to the longest test yet, from sunup to sundown. Then, one contestant has a choice to make on whether to stay or leave, followed by another being eliminated.

75 :06x07 - Season 6, Episode 7

The teams are put through the most unusual workouts yet and receives their six week reports by Dr. Huizenga. Then, a challenge on a balance beam rewards the winner with something special from home.

76 :06x08 - Season 6, Episode 8

The contestants are given a quiz which deals in calories with the winner receiving an advantage towards the next challenge. Later, a pair of contestants have an argument just before the challenge, and one contestant sets the record for weight-loss.

77 :06x09 - Season 6, Episode 9

This week finds the teams broken up and the contestants will now work as individuals. Later, all the previously eliminated contestants make a return to the ranch. Allison Vincent, last seasons winner also makes a surprise appearance. Plus, the elimination round is given a new twist.

78 :06x10 - Season 6, Episode 10

The contestants take a step back to the 1980's as they dress the part and will be using an 80's style workout. A pair of contestants refuse to talk with each other which causes friction within the house and between one team. Then, an emotion goodbye sees another contestant eliminated.

79 :06x11 - Season 6, Episode 11

The contestants will be put through an NFL style workout with the help and inspiration from Jerry Rice and Steve Young. Later, Rocco DiSpirito illustrates how Thanksgiving meals can be altered and still taste great, and the players receive videos from home.

80 :06x12 - Season 6, Episode 12

Project Runway champ Christian Siriano assists the contestants with Wardrobe as they receive a makeovers, followed by an appearance on the Tyra Banks Show, where their loved ones await them. Back at the ranch, one contestant has a breakthrough.

81 :06x13 - Season 6, Episode 13

The remaining four will be trying on their old clothes for a fitting and view a video of highlights for the season with their trainers. Later, the contestants are challenged to wear clothing which matches their current weight loss. Following the weigh-in, the final two contestants which fall below the yellow line plead to be named the third finalist by the viewers.

82 :06x14 - Season 6 Finale

The sixth season finale finds the eliminated contestants gathering for a final weigh-in and compete for the $100,000 at home prize and the third finalist is chosen before revealing this season's winner.

83 :07x01 - Season 7, Episode 1

Season 7 finds the players competing as pairs. From grandparents to best friends to former plus-sized models, this season will have plenty of firsts, with the oldest participant (63-year-old) and the heaviest (379 lbs.- female and 454 lbs.-male) in the shows history.

84 :07x02 - Season 7, Episode 2

The players are faced with temptation, causing them to assess why they came here in the first place. Later, all the contestants compete in a race where immunity and a phone call home is the prize, and Bob clashes with a contestant during the last chance workout.

85 :07x03 - Season 7, Episode 3

One contestant will win a chance at having a personal trainer in his or her very own home. Elsewhere, the players receive a progress update from Dr. Huizenga after three weeks, and the winner of the jump rope competition receives this weeks immunity.

86 :07x04 - Season 7, Episode 4

87 :07x05 - Season 7, Episode 5

88 :07x06 - Season 7, Episode 6

A balancing test will win one contestant a 24 hour visit from a loved one. Later, the teams are challenged by a test of their endurance before the next elimination round.

89 :07x07 - Season 7, Episode 7

The contestants are challenged to climb a steep hillside and find the two keys which are located near the top that opens the doors to a gym on the ranch. Those who can not find a key must work out on their own without the use of a gym. Later, the teams go head-to-head in a rowing machine competition.

90 :07x08 - Season 7, Episode 8

Part 1 finds the players struggling to make adjustments when the teams are reorganized and each will have a new trainer. Later, the contestants are challenged to log in as many miles as they can on a bike during a 24 hour period.

91 :07x09 - Season 7, Episode 9

In the conclusion, the contestants are given a test on aging and health. The player's then have a lost chance to exercise before their weigh-in.

92 :07x10 - Season 7, Episode 10

The contestants get schooling on how to choose a healthy meal while at a restaurant from Rocco DiSprito, who then prepares them a special meal for the team which is named winner of a cook-off challenge. Later, the players get a boxing lesson from legend Sugar Ray Leonard, and then the contestants are challenged to pack and load kits for the food bank.

93 :07x11 - Season 7, Episode 11

Today's weigh-in may be effected by the surprise challenge. Later, the players will compete in a relay race with the winners being rewarded with a day of luxury and spa treatments, but a few players are sucked in by temptation during the challenge. Also, one challenger finds himself at odds with a trainer.

94 :07x12 - Season 7, Episode 12

The contestants get to spend one week at home, and must run a half of a marathon and choose healthy food choices. Later, the competitors are challenged with a cookie temptation, and a weigh-in will show how well they did while at home.

95 :07x13 - Season 7, Episode 13

A challenge featuring NASCAR's Clint Bowyer has the contestants pulling cars which have been filled with extra weight assigned by their teammates. Later, all the teams are dissolved and the players will now all be on their own. Also, a player sets a record for the most weight lost at the weigh-in.

96 :07x14 - Season 7, Episode 14

Previous winners Ali Vincent and Michelle Aguilar take over the hosting duties from Ali Sweeney at the ranch. Elsewhere, the competition is changed by the addition of new arrivals; a medical setback befalls one player; the contestants are suspended over a pool in a balance challenge; and Bob holds last chance workouts at the beach.

97 :07x15 - Season 7, Episode 15

The players are given a risky temptation challenge while hoping to get the sole vote at elimination. Later, the contestants get a lesson from Rocco DiSpirito on how to cook healthy versions of restaurant meals at home. Also, a pair of former contestants return to offer up their advice; and players are challenged to scale steps at a stadium.

98 :07x16 - Season 7, Episode 16

Tim Gunn, Tabatha Coffey and Brandon Martinez assist in giving the remaining players a makeover. Elsewhere, an injury will hamper one of the woman with her workouts, and the contestants reach new heights in the challenge.

99 :07x17 - Season 7, Episode 17

The players have a chance at winning a trip to New York by taking part in a health related quiz. Later, the contestants will have their shopping choices critiqued by Bob and Jillian; the players take a balance challenge; and someone reaches a milestone at the weigh-in.

100 :07x18 - Season 7, Episode 18

The players are challenges to create a workout for Bob and Jillian. Also, the contestants will carry bags uphill which contain the same amount of weight as they have lost so far. Later, Dr. Huizenga updates their "real ages;" the players try on their goal clothing; and the players spend 30 days at home before being weighed in for the final time at the ranch.

101 :07x19 - Season 7, Episode 19

The players each return to their homes for a 30 day period to learn on their own how to keep a healthy lifestyle while away from the ranch. A return to the campus finds the competitors set for their final challenge: racing in a full marathon. The final weigh-in reveals the final two players, plus two players compete for the third spot.

102 :07x20 - Season 7 Finale

The season seven finale finds a third third finalist chosen for a chance at the $250,000 grand prize. The at home players are weighed in for a $100,000 prize; and viewers get to choose between 2 potential players for next season's show.

Where Are They Now?

103 :08x01 - Season 8, Episode 1

104 :08x02 - Season 8, Episode 2

The players learn how to make healthy meals from chef Curtis Stone during a kitchen boot camp. Their instructions follow in line with Ali's announcement that is the contestants all had big losses during week 2, no one would be sent home. Also, the contestants are challenged to a balance test.

105 :08x03 - Season 8, Episode 3

The players receive an offer that may be too good to refuse. Then, the contestants come face-to-face with their first temptation, which leaves the winner in control at the weigh-in. Also, an the groups stamina will be tested in an incline challenge. The end of the episode will see one contestant eliminated.

106 :08x04 - Season 8, Episode 4

107 :08x05 - Season 8, Episode 5

The challenge winner of this episode will get to divide the players up into two teams. Meanwhile, one contestant receives a special gift from another, and a difficult elimination finds another player being sent home.

108 :08x06 - Season 8, Episode 6

Two teams search for buried treasure as they head to the beach. One team goes home for an emotional reunions with their families, while the other team time making the best of their time on campus alone.

109 :08x07 - Season 8, Episode 7

Before the contestants take part in a baseball challenge they receive a talk from Derek Jeter concerning teamwork. The winner of the challenge will win a healthy meal prepared by Curtis Stone. One contestant breaks a Biggest Loser record.

110 :08x08 - Season 8, Episode 8

The remaining contestants head to Washington, D.C., where they will get to visit the White House kitchen. Also, the players take part in a competition in which they try to get as many people as possible to participate in a public workout. The contestants and trainers get to meet the members of congress and another player is eliminated.

111 :08x09 - Season 8, Episode 9

112 :08x10 - Season 8, Episode 10

113 :08x11 - Season 8, Episode 11

114 :08x12 - Season 8, Episode 12

115 :08x13 - Season 8 Finale

116 :09x01 - Season 9, Episode 1

117 :09x02 - Season 9, Episode 2

Dr. Huizenga delivers news to the contestants that change their outlook on weight loss, as well as their lives in genera. This week's physical challenge has contestants competing in a balance challenge over a pool. Later, Jillian helps one contestant overcome their fear of water.

118 :09x03 - Season 9, Episode 3

119 :09x04 - Season 9, Episode 4

120 :09x05 - Season 9, Episode 5

This week, contestants are surprised by the return of the blue and yellow teams, who were sent home after the first challenge of the season. Now they’re back, 30 days later, to weigh in and try to earn a spot back on the ranch. Then a vigorous football challenge tests everyone’s stamina, except for one player sidelined with medical issues, and provides immunity for the winner – but a big disadvantage for the losing team. Later, after another elimination round sends a player home, host Alison Sweeney surprises the contestants with exciting news

121 :09x06 - Season 9, Episode 6

122 :09x07 - Season 9, Episode 7

123 :09x08 - Season 9, Episode 8

124 :09x09 - Season 9, Episode 9

125 :09x10 - Season 9, Episode 10

126 :09x11 - Season 9, Episode 11

Eliminated contestants vie for a spot back in the competition; a friendship begins to unravel.

127 :09x12 - Season 9, Episode 12

The competition heats up when the players learn how to get immunity for the week; a swimming challenge reveals who the players want to remain in the competition.

128 :09x13 - Season 9, Episode 13

129 :09x14 - Season 9, Episode 14

130 :09x15 - Season 9, Episode 15

131 :09x16 - Season 9, Episode 16

132 :09x17 - Season 9, Episode 17

133 :09x18 - Season 9, Episode 18

134 :09x19 - Season 9 Finale

Where Are They Now?

135 :10x01 - Season 10, Episode 1

In the 10th season premiere, Bob and Jillian travel across the U.S. to meet potential players for this season

136 :10x02 - Season 10, Episode 2

It's a week of surprises for the contestants, starting with news from host Alison Sweeney that the competition is getting bigger with the addition of two new players who didn't make it to the ranch in the premiere but have been saved by trainers Bob Harper and Jillian Michaels. After all of the contestants get through their first grueling workout, they get eye-opening news from Dr. Huizenga about their health, revelations that are shared with surprise guests. Then the surprise of an early weigh-in - and a twist resulting in more players falling below the yellow line - comes as a shock to all the contestants. Later, they race each other in their first challenge, and then must make a difficult and emotional decision to determine which player will go home first.

137 :10x03 - Season 10, Episode 3

One contestant expresses a wish to go home this week, creating drama and tension in the house, while another group of players form a secret alliance. Trainer Bob Harper puts the contestants through a grueling workout, zeroing in on one player he thinks has shown him disrespect, and later, trainer Jillian Michaels tries to bring out the athlete in two contestants she thinks need extra attention. Tennis superstar Anna Kournikova gives all the players tennis lessons for a total body workout before a tennis ball pop challenge. Then the players are surprised by another early weigh-in, and those who fall below the yellow line face a wild elimination challenge involving 175 tons of sand before another contestant is send home.

138 :10x04 - Season 10, Episode 4

After hearing from host Alison Sweeney that two people will be going home this week, the contestants face their first temptation in the form of cupcakes, one of which represents a potentially huge prize for the winner that could grow more valuable each week. Later, chef Curtis Stone shows them that desserts can still be part of their lives by teaching them to prepare delicious, low-calorie cupcakes. At an early weigh-in, trainer Jillian Michaels grows frustrated with one contestant who doesn't celebrate her successes, and then trainer Bob Harper invites the players to his house for a vegan meal. Then those who fell below the yellow line face an elimination challenge involving large rolls of carpet, but one player fears elimination when sidelined by an injury. And despite two players being sent home this week, the contestants learn that the competition is about to get bigger.

139 :10x05 - Season 10, Episode 5

Five contestants who didn't make it to the ranch in the premiere episode now return, all vying for a spot back in the competition. Whoever has the highest percentage of weight loss wins their way back in, and also wins one of the most important, game-changing decisions of the season when the competition moves to blue team vs. black team this week. In their first challenge as blue team vs. black, they race through food stations in downtown Los Angeles, answering food trivia questions that come with a physical challenge penalty if they choose the wrong answer. And the stakes are high with the winning team getting "The Biggest Loser" meal plan by Ediets for each member, plus the always-coveted reward of letters from home. When one team proves victorious, members of the losing team get a heartwarming surprise. Later, the drama heats up when a rumor spreads of one team possibly throwing the weigh-in, and after a tense weigh-in, the players send another contestant home.

140 :10x06 - Season 10, Episode 6

The contestants start their week hearing surprising news from host Alison Sweeney that at this week's weigh-in, only one person's weight will count for the blue team and the black team. It will be up to the opposing team to decide whose weight will count and the two contestants chosen won't be revealed until the weigh-in leaving the blue and black teams busy strategizing on who they should choose. Then the players get a visit from celebrity chefs Curtis Stone and Lorena Garcia. Each chef is paired with a team to help coach them through a timed cooking competition but neither chef is allowed to actually touch the food, adding to the tension as they race against the clock to finish in time. The winning team gets an advantage at this week's challenge, a dragon boat race pitting blue team vs. black. It's the ultimate test of teamwork and timing as both teams race to win the challenge and a prize that will give them a valuable advantage at weigh-in.

141 :10x07 - Season 10, Episode 7

It's the adventure of a lifetime when "The Biggest Loser" contestants are whisked away on military trucks to Camp Pendleton, where they will live and train like Marines for the week. There, they hit the ground running with a fast-paced week of activities led by a select group of Marines. It's non-stop action, from hiking with oversized backpacks to early morning rifle exercises to an intense obstacle course challenge that pits blue team vs. black, with a prize the players want now more than ever. While some struggle with the physical challenges and the adjustment of being away from the ranch, others thrive, and one even shaves his head to be just like the Marines! Later, the players meet up with trainers Bob Harper and Jillian Michaels at the Camp Pendleton gym for a Marine-style last chance workout, and then a weigh-in full of surprising numbers is followed by another player being eliminated.

142 :10x08 - Season 10, Episode 8

Host Alison Sweeney greets players with the news that the black and blue teams are being dissolved, and instead, they'll be competing as pairs this week. A high-calorie dinner temptation will determine who gets to choose the pairs, and the winning contestant's choices for teams creates tension in the house and alienates at least one player who feels betrayed. Trainers Bob Harper and Jillian Michaels work the contestants especially hard this week, and confront a few of the players about issues they can't seem to get past. Later, the pairs compete in a crazy challenge stacking sugar cubes, followed by the most explosive weigh-in yet this season, with heated exchanges taking place among the contestants and the trainers. A surprising elimination follows, sending two more players home.

143 :10x09 - Season 10, Episode 9

This week, the competition moves to singles, so contestants will compete on their own without partners or teammates from this point forward. The most recent elimination is still a big topic of conversation, with trainer Bob Harper trying to determine why the vote went the way it did and one player still upset over the departure of a close friend. But the players all perk up with news from the trainers that they're getting a special gift from loved ones - heartwarming videos from home that move everyone to tears. When one player doesn't receive a video, the other contestants thoughtfully plan an uplifting surprise to try and make up for it. Then a pool challenge tests everyone's balancing skills, and later, one player reaches a milestone at the weigh-in. Finally, one more contestant is eliminated, and heads home to an emotional reunion with loved ones.

144 :10x10 - Season 10, Episode 10

It's one of the most eagerly anticipated events every season: "The Biggest Loser" makeover episode! First, the remaining seven players head to the salon of celebrity hairstylist Ken Paves, who crafts great new looks for each of them, and then they're off to a People Magazine photo shoot. Later, the contestants show off their stylish and slimmer selves on a fashion runway celebrating Ford Warriors in Pink and all of their efforts to raise breast cancer awareness and fight the disease. Then it's time for emotional reunions when the made-over players show off their incredible new looks to loved ones flown in to help them celebrate their big day. After the makeovers, it's back to reality at the ranch, and then a challenge that will give the lucky winner the biggest prize yet this season -- a 2011 Ford Edge car. The contestants' stamina and endurance are put to the test, but it's their hearts that really come into play when a surprise turn of events at the challenge leads to one of the most heartwarming moments in "Biggest Loser" history. Finally, one player reaches a milestone at the weigh-in, after which an elimination round sends another contestant home.

145 :10x11 - Season 10, Episode 11

The stakes are higher than ever this week when host Alison Sweeney informs the last six contestants that there will be a red line and a yellow line at the weigh-in this week, and those who stay above both will be in the final four. Special guest Nastia Liukin, a five-time Olympic medalist and four-time World Champion gymnast, meets up with the players for a pop challenge that tests their stamina as they compete in five different exercises. Later, trainers Bob Harper and Jillian Michaels talk to contestants to see how they feel about going home, one contestant gets an impressive health update from Dr. Huizenga, and the players all discuss what they'd do with the grand prize money if they won. Then it's time for the traditional end-of-season challenge in which the players all put their original weight back on and drop it incrementally as they lost it on the show. Later, one player tearfully says goodbye after falling below the red line at the weigh-in, and then two more are up for an elimination that really takes the player voted out by surprise. Finally, the two eliminees return home for emotional reunions with family and friends, leaving the season 10 final four at the ranch.

146 :10x12 - Season 10, Episode 12

The final four contestants leave the ranch and transition back to life at home, showing off their new slimmer selves to family and friends and facing the temptations and challenges of everyday life. Six weeks later, they return to the ranch to run 26.2 miles, cheered on by loved ones. The winner breaks a "Biggest Loser" marathon record. Then a final weigh-in determines who the two definite finalists will be - and which two contestants fall below the dreaded yellow line, leaving America to vote which one will be the third finalist to compete for the grand prize of $250,000. Alison Sweeney hosts, and trainers Bob Harper and Jillian Michaels also star.

147 :10x13 - Season 10 Finale

In this must-see, exciting live finale, all of the contestants from this season return for a special reunion and a chance to weigh in one last time and show America how much weight they've all lost since beginning their weight-loss journeys.

148 :11x01 - Season 11, Episode 1

Two new trainers and a compelling new twist deliver a game-changing season like nothing viewers have seen before when season 11 premieres with twenty-two contestants -- eleven family and friend teams of two. After the first challenge, contestants are given the unprecedented opportunity to choose whether to work out with trainers Bob Harper and Jillian Michaels at the ranch or work out at a secret location with two unknown trainers and get four weeks of immunity.

What ensues is a riveting ride of intense emotions, surprising turns and "can't miss" moments as the two groups fight their weight loss battles separately with two sets of trainers equally committed to giving these players a new lease on a healthier life. The contestants include an Olympic gold medalist, identical twin policemen, a pastor who wants to spare his overweight son from the challenges he faced because of obesity, and a woman who has lost pregnancies because of her weight and wants more than anything to be a mother.

149 :11x02 - Season 11, Episode 2

This week kicks off with host Alison Sweeney issuing a challenge to the ranch-based contestants: if they have a higher percentage of weight loss than the "unknowns" - the contestants working out with the two new mystery trainers -- they'll all have immunity this week. The "unknowns" fuel the competitive spirit by delivering messages and surprises to the contestants at the ranch reminding them just how tough their competition really is. Then Dr. Huizenga gives sobering news to contestants about their health risks and their real ages vs. their chronological ages, but this time, loved ones from home are involved to really help drive the message home. Later, the ranch contestants' ability to work together as a team is tested when they try to beat the time of the unknowns in a wild bridge-building challenge using rafts. Then a tense weigh-in reveals whether the ranch contestants are safe from elimination, or whether they'll be sending another player home.

150 :11x03 - Season 11, Episode 3

The "unknown trainers" are finally revealed, and both will share their personal stories that led them to "The Biggest Loser." Their contestants, "the unknowns," confront one player they feel isn't working hard enough, and later, "the unknowns" and the ranch contestants square off for a pop challenge. The winning player from each group will get a delicious healthy dinner prepared by Chef Curtis Stone, and compete for a coveted 2 lb. advantage at this week's weigh-in. Later, Dr. Huizenga gives "the unknowns" startling news about their health, and one player is surprised to learn they have the highest percentage of body fat in the group. Meanwhile, trainers Bob Harper and Jillian Michaels single out a few of their contestants to find out what really led to their weight gain, and then the ranch contestants meet host Alison Sweeney for a water-carrying challenge that will give the winner the sole vote at this week's elimination. Later, a surprising weigh-in -- which results in shocking numbers for one team -- disappoints the trainers in a big way, leading to the elimination of one player they feel isn't ready to go home.

151 :11x04 - Season 11, Episode 4

The contestants are faced with the "ultimate temptation" this week when each team enters a room filled with each player's favorite foods. Whoever eats the most calories gets to choose which team will go train with the "unknowns" and the new trainers. Later, the stakes are high with a calorie-counting challenge that will give the winners what they want most - letters from loved ones back home. The trainers confront a contestant they think threw the last weigh-in, and later, trainer Jillian Michaels puts trainer Bob Harper through an intense yoga workout to show the players what they'll ultimately be able to do once they lose weight. Then one player takes matters into their own hands to try and send a contestant home.

152 :11x05 - Season 11, Episode 5

After four long weeks, the "unknowns" move to the ranch and are reunited with the other contestants, who get to meet the new trainers for the first time. Host Alison Sweeney explains that the ranch contestants will be safe this week if they collectively lose more than 48 pounds, but for the "unknowns," they will be facing their first elimination all season. And both teams only get to see their trainers once this week. The "unknowns" experience some surprises while settling into their new home, and a secret is revealed about how one contestant has lost so much weight. A challenge involving weights shows which team stacks up to be the best, and later, everyone weighs in and finds out whether one or two players will be going home.

153 :11x06 - Season 11, Episode 6

It's Valentine's Day on the ranch, and host Alison Sweeney ushers the contestants into a room full of chocolate candies for a holiday-themed temptation. Whoever eats the most chocolate will have the option to trade two players on their team for two players on the other - or to keep the teams the same, and the winner will be a secret. But as teams are divided into red vs. black, the winner's choice causes upset in the house. Later, a five-part relay race challenge tests the players' endurance, speed, agility, strength and knowledge. Trainer Jillian Michaels takes one contestant horseback riding, and one team gets to enjoy heartwarming videos from home before a weigh-in results in a Biggest Loser record being broken and another player heading home.

154 :11x07 - Season 11, Episode 7

The two teams of contestants are all tied up this week - literally - in a rope challenge in which teamwork will determine which group of players will get to use the gym this week, and which team will have to be creative and find other places at the ranch to work out. One trainer moves into the house to try and get a contestant to open up, and later, one team wins the chance to block someone's weight on the scale at a wild physical and mental challenge that finds them pushing a train 800 feet while answering food fact questions along the way. Then one player reaches a milestone at the weigh-in before another contestant is eliminated and sent home.

155 :11x08 - Season 11, Episode 8

A ball challenge that turns out to be much harder than it looks gives the winning team a big advantage at this week's weigh-in, which is especially valuable given that both a red line and a yellow line will result in two players going home. Trainers Bob Harper and Jillian Michaels try to teach their contestants to push beyond the limits they've set for themselves, while trainers Cara Castronuova and Brett Hoebel take their team for an intense workout at a Mixed Martial Arts gym owned by contestant Rulon Gardner's former trainer, retired UFC heavyweight champion Bas Rutten. Then a weigh-in filled with surprises is followed by two contestants leaving the ranch.

156 :11x09 - Season 11, Episode 9

The contestants are excited to hear from host Alison Sweeney that they will all be going home for two weeks. Each player returns home to emotional reunions with friends and family, after which they navigate the challenges of being back in their real lives, facing the same temptations that brought them to the ranch and realizing all of the things they are capable of doing now that they couldn't do before. When they come back to the ranch, they'll compete in a 5K challenge on a treadmill just as they did in the first episode of the season, but this time, they're going to run the 5K all by themselves. And just as before, each will pick who they want to train them - Bob Harper and Jillian Michaels or Cara Castronuova and Brett Hoebel - in the order in which they finish the challenge. Then a few contestants reach milestones at the weigh-in, after which another player is sent packing.

157 :11x10 - Season 11, Episode 10

Each team has to pick a team captain, who will have many responsibilities during the week, and only two players from each team can work out with a trainer. The teams first square off in a pop challenge involving 13 tiered cakes, and later, the contestants meet host Alison Sweeney at a mud pit where they have to make their way across the pit while balancing on a step - without touching the mud. Several contestants have heart-to-heart talks with their trainers, opening up more about the individual personal struggles they had before coming to the ranch, and later, another player is sent home following a weigh-in with some surprising weight loss numbers.

158 :11x11 - Season 11, Episode 11

Host Alison Sweeney tells the remaining 12 contestants that they will all be on one team this week - the blue team - and they will all have immunity if they beat their weight loss from the previous week. But first, there's a pop challenge in which they have to prepare delicious, healthy, low-calorie meals in under 30 minutes. Chefs Curtis Stone and Lorena Garcia will decide who prepares the best dish, with the winner getting a coveted prize. Later the blue team meets at a rock quarry where they'll have to uncover a buried rope attached to signs with trivia questions. If they answer the questions incorrectly, they will be led in the wrong direction, something all the players want to avoid since the winners get a huge advantage at this week's weigh-in. Later, Dr. Huizenga drops by with impressive medical updates, including the news that one contestant has already reached their goal weight. Then it's time for the weigh-in, when players found out if they all get to stay at the ranch another week - or if they'll be sending one contestant home.

159 :11x12 - Season 11, Episode 12

This week, one eliminated contestant returns and the remaining players are split into four teams: red, blue, green and black. Each team will be led by one of the four trainers: Bob Harper, Jillian Michaels, Cara Catronuova and Brett Hoebel. While Bob takes his team to spin class and Jillian takes hers to work out at the beach, Brett leads his group on a hike and Cara heads to a boxing ring and has one of her players fight against a longtime boxer. Later, the four teams square off in a difficult challenge involving ropes and weights, and then gameplay at the weigh-in doesn't turn out the way one contestant expects, and another player is sent home. Alison Sweeney hosts the series.

160 :11x13 - Season 11, Episode 13

The remaining four teams square off for a wild pop challenge that involves balancing eggs, and the losing team has to leave the ranch for the week and work with a limited budget to purchase what items they'll need most. Trainer Bob Harper takes his contestants to an inner-city school, where they energize the students with a fun workout and talk about the importance of fitness. Then all the contestants go on a huge Easter egg hunt for 5,000 eggs, including a Golden Egg that comes with a very coveted prize. And later, the players are treated to a sneak preview of the upcoming feature film "Hop." Finally, one player reaches a milestone at the weigh-in before another contestant is sent packing.

161 :11x14 - Season 11, Episode 14

This week kicks off with a pop challenge in which contestants have to estimate the length of a mile. The winning team gets a night out on the town, Hollywood style, while the other players have to stay behind and clean the ranch. Later, the teams race to light up a "Biggest Loser" board in a challenge that gives a stiff penalty for the losing team - no votes at the elimination. Then one trainer gets shocking news at the weigh-in, and after an emotional elimination, host Alison Sweeney delivers some very exciting news to the contestants.

162 :11x15 - Season 11, Episode 15

The nine remaining contestants arrive in New Zealand and embark on the adventure of a lifetime, starting with a visit to Sky Harbor, a popular tourist attraction known for its breathtaking views. Awaiting them are 51 flights of stairs to climb followed by the adrenaline rush of sky-jumping for contestants and trainers. Then it's on to a 5K challenge New Zealand-style, with the winning team getting an unforgettable helicopter ride to gorgeous Waiheke Island. The trainers take contestants to the Auckland Fish Market, where they talk about eating healthy while travelling abroad, and Jillian has a lively lobster encounter. Later, the contestants charter an American Cup racing boat to sail around Auckland Harbor, and one player with a special connection to New Zealand gets a very generous gift.

163 :11x16 - Season 11, Episode 16

The New Zealand adventure continues in Queenstown, where the eight remaining contestants learn from host Alison Sweeney that the game is going to singles. Then a special visitor surprises all of the players with a grand and unforgettable entrance! This week's challenge is river surfing, with the winning contestant getting the coveted prize of immunity plus a helicopter ride to spectacular Milford Sound, one of New Zealand's top tourist destinations. Zip-lining, rock climbing and bungee jumping highlight the rest of their memorable Queenstown experience before a weigh-in sends another player home.

164 :11x17 - Season 11, Episode 17

It's "Favorites Week" on the ranch, and the remaining seven players participate in a favorite past season challenge - pulling a car for a half mile. Popular NASCAR driver Clint Bowyer is there to cheer them on at the speedway, and Tara Costa, the season seven winner of this challenge, returns to compete alongside the contestants for some amazing prizes. Later, popular season nine contestant Sam Poueu and season five winner Ali Vincent put the contestants through a workout in the gym, and also motivate the players one-on-one. Then it's a weigh-in full of surprises, leading to one more contestant facing eliminaton.

165 :11x18 - Season 11, Episode 18

It's the eagerly-anticipated makeover week at the ranch, and fashion guru Tim Gunn guest stars in the Cinderella-themed makeover as a fairy Godfather to the remaining five players. Tim works his fashion magic helping the contestants pick out stylish new outfits to flatter their new slimmer selves, and celebrity hairstylist Ken Paves crafts incredible new looks for each player, leading to amazing and dramatic transformations. Then they are off to enjoy a magical evening, arriving by horse-drawn carriage at a beautiful castle, where they will enjoy heartwarming reunions with loved ones and be treated to a special private concert by the popular band OneRepublic. And the magic continues at this week's challenge, which finds contestants searching through 50 car-shaped sand castles for the keys to two incredible prizes - brand new Mazda 5s. Then it's time for the weigh-in, where one final surprise awaits the contestants.

166 :11x19 - Season 11, Episode 19

It's "Finals week," and each contestant will be tested by the trainers to see how much they've really learned at "The Biggest Loser" ranch, with the winner claiming a big cash prize. The players get a chance to add to their overall test scores by competing against each other in four difference exercises while playing "The Biggest Loser Ultimate Workout" on Kinect for Xbox 360. Later, the contestants are put to another test with a stair-building challenge involving weighted sandbags. The winner gets a weigh-in advantage that could help determine who makes it to the final four - and who is sent home.

167 :11x20 - Season 11, Episode 20

It's down to the final four contestants, and this week kicks off with a fun cooking competition to see who can make the tastiest turkey burgers for a group of kids. Then it's off to the golf course, where season ten winner Patrick House is waiting to cheer the players on as they "put the weight back on" in one of the toughest challenges of the season. Carrying a heavy golf bag filled with flags weighted for how much they lost each week, each player races from hole to hole, dropping the flags along the way and reminding themselves just how far they've really come. Also, the contestants get to make calls to eliminated players to see how they've been doing at home, and later, they have their final last chance workout at the ranch with the trainers. Then one last weigh-in determines who the two definite finalists will be - and which two contestants fall below the dreaded yellow line, leaving America to vote which one will be the third finalist to compete for the grand prize of $250,000.

168 :11x21 - Season 11 Finale

In this must-see, exciting live finale, the contestants from this season return for a special reunion and a chance to weigh in one last time - and show America how much weight they've all lost since beginning their weight-loss journeys. There are four contestants left, but America has voted on the two that fell below the yellow line in last week's episode to choose who will be the third finalist in the game. After America's vote is revealed and the third finalist is announced, the eliminated player will then weigh in with the other eliminated contestants to compete for the $100,000 "at home" prize. Then it's the moment viewers have been waiting for, when one of the three finalists will be named this season's "Biggest Loser" and win the coveted grand prize of $250,000!

169 :12x01 - Season 12, Episode 1

The contestants are grouped by age and must choose their trainer in the Season 12 premiere. Tennis star Anna Kournikova and fitness expert Dolvett Quince join Bob Harper to make up the trio of trainers for the season.

170 :12x02 - Season 12, Episode 2

Gym-time restrictions are put into place, allowing each team only two hours a day to work out. Elsewhere, the contestants receive health evaluations from Dr. Huizenga, who delivers particularly shocking news to one player; and the teams move a ball through a maze during a challenge.

171 :12x03 - Season 12, Episode 3

The players compete for Super Bowl tickets during NFL week at the ranch. Pros Clay Matthews, Drew Brees and Tony Gonzalez head up a football-throwing challenge, while Tim Tebow, Shawne Merriman and Eric Dickerson conduct last-chance workouts.

172 :12x04 - Season 12, Episode 4

Former contestants Hannah Curlee, Adam Hurtado and Marci Crozier return to offer inspiration to the teams. Also: The players battle the elements during a challenge in order to win letters from home; a player tries to conquer his fear of the water during a pool workout.

173 :12x05 - Season 12, Episode 5

A player goes home and takes a trainer along for the trip. But the prize comes at a cost: the player's weight is the only one that counts for the team at the weigh-in. Elsewhere, the contestants at the ranch navigate a maze to fill a cylinder with soda; and a trainer lashes out at a player who hides behind humor.

174 :12x06 - Season 12, Episode 6

- For Halloween, the contestants face a crazy candy temptation and a very spooky challenge, while host Alison Sweeney and trainers Bob Harper, Anna Kournikova and Dolvett Quince get in the spirit by dressing up in Halloween costumes. First, the contestants learn they'll all be playing as one team this week and if they collectively lose 100 lbs., everyone will be safe for another week. A cauldron of candy hanging on a Biggest Loser scale tempts the players all week in more ways than one: for every pound of candy eaten, a pound will be deducted from the amount they all need to lose, up to 10 lbs. This week's challenge finds players racing through a haunted maze trying to collect as many apples as possible, with another weigh-in advantage and disadvantage hanging over them. With the trainers working out all of the players this week, one contestant has separation anxiety, and one trainer is not amused when the contestants play a Halloween trick on him. Plus, a big secret shared by two contestants is revealed. Later, one player ties a Biggest Loser record on the scale before another contestant is sent home.

175 :12x07 - Season 12, Episode 7

The contestants swap teams and trainers after a calorie-counting challenge, and the realignment causes some tension. Later, the new teams face their first challenge together; and the trainers hold last-chance workouts away from the ranch.

176 :12x08 - Season 12, Episode 8

This week, only one contestant's weight will count for each team, and trainers Bob Harper, Anna Kournikova and Dolvett Quince get to choose which player will represent their teams. The competition heats up with a cooking challenge in which players and their trainers have to race against the clock to prepare a healthy and delicious low-calorie dish for two special judges - season 11 "Biggest Loser" winner Olivia Ward and "Biggest Loser" cookbook author Devin Alexander. Prizes for the winning team include something very special from home. Dr. Huizenga drops by with a special medical guest to visit with the players and give one contestant some very welcome news. And later, the weigh-in reveals whether each trainer chose the right person to represent their team before an elimination leaves one player feeling very betrayed.

177 :12x09 - Season 12, Episode 9

The players compete in a pentathlon to win immunity at the weigh-in after the teams are dissolved. Speed skater Apolo Ohno surprises the contestants by coaching them through the final event. Elsewhere, a trainer helps a player deal with trust issues.

178 :12x10 - Season 12, Episode 10

The trainers prepare Thanksgiving dinner for the players, who also face a temptation challenge with a three-pound advantage prize for the winner. Elsewhere, a tough challenge requires the players to climb one mile on Jacob's Ladder treadmills.

Where Are They Now?

Updates on past contestants are presented, along with bloopers and behind-the-scenes footage. Also: The trainers offer their thoughts on the current season; a contestant makes a surprise announcement; cameras follow Bob through an average day; Aida Mollenkamp prepares a diet-friendly Thanksgiving dinner and offers cooking tips.

179 :12x11 - Season 12, Episode 11

In this eagerly-anticipated makeover episode, the five remaining players head off to a luxury spa to get pampered before shopping for stylish new clothes in Beverly Hills with fashion maven Jeannie Mai. Then in-demand Hollywood hairdresser Ken Paves crafts stylish new looks for the contestants before a limousine whisks them away to see Cirque Du Soleil's "Iris." But before the show begins, each player gets a heartwarming reunion with a loved one flown in to celebrate their big day and see their amazing transformation. Later, back to reality and the ranch, the contestants weigh in and one more is eliminated, leaving the final four players of the season.

180 :12x12 - Season 12, Episode 12

The stakes are higher than ever when all the contestants return to the same spot where they had their first challenge to compete in a marathon. For the first time in the show's history, the contestant who wins the race automatically becomes a finalist, eligible to compete for the $250,000 grand prize. But there's extra incentive because the first five players who finish the race will also get to split $50,000. The only way to guarantee a spot in the finals is to either win the marathon - or be one of the contestants who stay above the red line at the weigh-in. In the end, the three finalists of season 12 will be revealed.

181 :12x13 - Season 12 Finale

In this must-see, exciting live finale, the contestants from this season return for a special reunion and a chance to weigh in one last time - and show America how much weight they've all lost since beginning their weight-loss journeys. Those who have been eliminated will compete for the $100,000 "at home" prize. Then it's the moment viewers have been waiting for, when one of the three finalists will be named this season's "Biggest Loser" and win the coveted grand prize of $250,000!

182 :13x01 - Season 13, Episode 1

A new batch of couples arrive at the ranch and are shocked to learn they'll be split up to compete against each other in the Season 13 premiere. The new round has a "No Excuses" theme, and the trainers address the reasons the contestants are overweight.

183 :13x02 - Season 13, Episode 2

The stakes are high this week when representatives of each team bid on the percentage of weight they think their team will lose at the weigh-in. The highest bidder gets a five-pound advantage if they hit their number at weigh-in - or lose the advantage to the other team if they don't hit their mark. "The Biggest Loser" nutritionist teaches the contestants how to shop for healthy food, and the black and red teams square off in a fast-paced challenge in which they have to turn an anchor wheel to retrieve puzzle pieces and then race against the clock to put the puzzle together. And later, the players get a sobering wake-up call when Dr. Huizenga reveals their real "inner ages, " before the weigh-in leads to another player going home.

184 :13x03 - Season 13, Episode 3

This week kicks off with a Chinese buffet temptation that will give the winner complete control of how contestants will be matched up for a face-off challenge in the gym - and also give them a two-pound advantage to use or give away. Later, trainers Bob Harper and Dolvett Quince coach the contestants through a wild water-transfer challenge that will reward the winning team with the most coveted prize of all - video chats home. And one player makes a shocking decision that stuns everyone before another contestant is sent packing following the weigh-in.

185 :13x04 - Season 13, Episode 4

The teams compete for exclusive use of the gym during a battering-ram challenge. Bob and Dolvett, meanwhile, try to get through to contestants they feel aren't putting in enough effort to shed pounds.

186 :13x05 - Season 13, Episode 5

A lively challenge that involves bouncing medicine balls on a trampoline to get them over a wall tests the speed and coordination of both the black and red teams as they vie for a valuable prize - the ability to choose which player's weight won't count at this week's weigh-in. Then it's a blast from the past when aqua team siblings Adrian and Daphne, who were eliminated before they even got to the ranch in episode one, come back to weigh-in and reveal whether they've lost enough weight to return to the competition. And a few personality clashes add tension in the house before the players decide which contestant will go home this week. Alison Sweeney hosts the series, and trainers Bob Harper and Dolvett Quince also star.

187 :13x06 - Season 13, Episode 6

In this season of "no excuses," this week's challenge addresses the excuse "I can't lose weight on my own." Trainers Bob Harper and Dolvett Quince are suspended over water in a wild dunk tank-like challenge in which the red and black teams have to use their strength to keep a weight from landing their trainer in the pool. The losing team has to do without their trainer all week until the last chance workout. Once the losing team is determine, one contestant admirably steps up to lead their group while their trainer is away, with none of them aware that he is secretly watching how they do in his absence. Later, a very heated elimination sends another player home after a tense weigh-in to see how both teams did this week.

188 :13x07 - Season 13, Episode 7

Two players visit home with their trainers in tow, and their weights alone count at the weigh-in. Elsewhere, the teams compete in an obstacle course in order to receive letters from loved ones for Valentine's Day; the players at the ranch must fend for themselves, though one contestant turns to nutritionist Rachel Beller for help preparing a special meal.

189 :13x08 - Season 13, Episode 8

A temptation-challenge winner reorganizes the teams in an unpopular move that creates tension and suspicion among the players. Elsewhere, the teams race to assemble a large puzzle in order to win a special prize.

190 :13x09 - Season 13, Episode 9

This week, the 11 remaining players put what they've learned to the test when they all go home for 18 days and are given the chance to gain immunity by losing 5% of their body weight. They'll also compete individually in a home rowing challenge that will earn the winner $10,000 when they are revealed at the weigh-in. While some contestants struggle with being back in their home environments, others prove they can stay on track, especially with the support of family and friends. Later, the contestants return to the ranch for grueling last chance workouts with trainers Bob Harper and Dolvett Quince before the weigh-in reveals who lost enough to gain immunity. Then another player goes home in the most emotional elimination so far this season.

191 :13x10 - Season 13, Episode 10

This week, the age-old excuse "I'm stuck in my comfort zone" is addressed as contestants are pushed out of their comfort zones by switching trainers for the week. The red team works out with trainer Bob Harper, while the black team burns calories with trainer Dolvett Quince. And one trainer gets out of his own comfort zone by trying ballet with his female contestants! Also, the teams get down and dirty in a 70-foot wide mud pit, filled with various weight plates they have to find in a messy challenge that will give one team a big advantage. Then it's time for the weigh-in, followed by an emotional elimination sending one more player home.

192 :13x11 - Season 13, Episode 11

This week, the game goes to singles for the nine remaining contestants, so everyone returns to their original team colors. Their first challenge as individuals is a tug-of-war competition on the ice with a Yankee Swap prize system that will give one lucky contestant a shopping spree with singer, actress and fashion designer Jessica Simpson! One trainer helps a contestant tackle her fear of heights, and then the tables are turned when one contestant tries coaching their trainer. Later, a tough elimination sends another player packing.

193 :13x12 - Season 13, Episode 12

The eight remaining contestants head to the tropical paradise of Hawaii for an action-packed week that will address the excuse "I can't lose weight on vacation." After being warmly welcomed to Oahu with a luau, the players compete in a trivia challenge that awards the winner a cash prize which can be spent on a menu of items. Next it's off to the breathtaking Kualoa Ranch where "Jurassic Park" was filmed and there the contestants race through a challenge involving tikis and leis for the coveted prize of immunity. Later, a young woman who epitomizes "no excuses" - real-life "Soul Surfer" Bethany Hamilton - teaches the contestants and trainers how to surf. Then at Pearl Harbor, with the USS Missouri in the background, the contestants weigh in to reveal whether they were able to lose weight on vacation before another player is sent home.

194 :13x13 - Season 13, Episode 13

To address the excuse "exercise is boring," trainer Dolvett Quince spices things up by taking contestants to a Zumba class, and trainer Bob Harper takes the players mountain biking. In this week's pop challenge, the seven remaining contestants try to load boxes of food on to seven trucks, with the contestant who finishes first getting the chance to pay it forward by donating the products to their hometown food bank. Then a cooking challenge, that begins at the market and ends at the ranch, finds the contestants racing against time to whip up a healthy, tasty and creative dish.

195 :13x14 - Season 13, Episode 14

The eagerly-anticipated makeover episode is here, and this season, it's bigger than ever! After the six remaining players compete in a challenge by shattering glass pane images of their former selves from week one on the ranch, the makeover fun begins. Fashion expert Jeannie Mai helps each contestant find stylish new clothes to flatter their slimmer selves, but first she shares a very big surprise -- a special video message from First Lady Michelle Obama inviting the players to come to the White House! Thrilled at the chance to go to the White House to meet with the First Lady, a longtime advocate for health and fitness, especially for our nation's children, the contestants have fun choosing their makeover outfits with Mai. Then they're off to the salon of celebrity stylist Ken Paves, who crafts stylish new looks for the players before they head to Washington, D.C. There, at the White House, family members are waiting to surprise them and see their amazing transformations in heartwarming, emotional reunions before they meet the First Lady.

196 :13x15 - Season 13, Episode 15

Michelle Obama discusses health and fitness with the six remaining players and meets with their families. She also joins the gang for a workout at the White House. Elsewhere, Bob counsels a player who turns to food for comfort; and Dolvett leads a last-chance workout in front of the Ulysses S. Grant Memorial.

197 :13x16 - Season 13, Episode 16

This week, a surprising turn of events shakes up the competition, and the contestants compete in a rough and wild short version of a "Tough Mudder" competition. But they won't be doing it alone - with them will be the show's three most recent winners John Rhode, Olivia Ward and Patrick House. Host Alison Sweeney helps motivate the remaining contestants by telling them the player with the highest percentage of weight loss at the weigh-in will win a Ford Escape SUV. Later, the players stroll down memory lane with the trainers and watch video journeys of how far they've really come from their first day on the ranch before an emotional weigh-in determines which player will walk away with a brand new car.

198 :13x17 - Season 13, Episode 17

The stakes are higher than ever when all the eliminated contestants return to the ranch to compete in a fateful, four-part challenge. The challenge winner will secure a coveted spot as a finalist, and the chance to compete for the $250,000 grand prize, along with the other two finalists revealed in last week's episode. It's a fight to the finish with each player fiercely determined to get back in the game in a competition that will put their speed, knowledge and endurance to the ultimate test. In the end, the third finalist of season 13 will be revealed.

199 :13x18 - Season 13 Finale

The contestants from this season return for a special reunion and a chance to weigh in one last time - and show America how much weight they've all lost since beginning their weight-loss journeys. Those who have been eliminated will compete for the $100,000 "at home" prize. Then it's the moment viewers have been waiting for, when one of the three finalists will be named this season's "Biggest Loser" and win the coveted grand prize of $250,000!