"Cutting the junk" is this week’s theme, and the players begin with a trivia challenge testing their knowledge about childhood obesity. The losing team will have to spend 4 ½ hours each day – the amount of time the average kid spends watching TV – in a room surrounded by junk food, soda and video games. Meanwhile, Dr. Joanna Dolgoff, "The Biggest Loser" childhood obesity expert and pediatrician, travels to the homes of kid participants Sunny, Lindsay and Biingo, to help the kids and their families cut the junk food and get on track with healthy eating. Then it’s one of the show’s craziest challenges ever when contestants have to race through a gooey bubble gum pit carrying 10 pound balls to win an amazing prize that everyone wants. Later, after a tense weigh-in, the players enter the show’s new voting booth to decide which contestant will be going home.