Sue's excitement about college lessens when a mishap forces her to cut her hair; Brick's girlfriend wants to take things to the next level.
Frankie is speechless when Mike -- whose entire wardrobe consists of long sleeved flannel shirts -- decides to wear a short sleeved Hawaiian shirt when they go out to dinner with some friends. Meanwhile, while Sue excitedly finds herself signing up for as many no-cut college clubs as she can, she accidentally tells Devin how much Axl loves her, which scares Devin and leads her to question their relationship
Frankie is completely gobsmacked when Mike's brother Rusty pays an unexpected visit and offers him an opportunity to partner on one of his crazy business ideas -- and Mike wants in. Meanwhile, Axl goes to extreme measures to prove to Mike that he can handle riding his dad's new motorcycle
Frankie becomes worried about Mike, who is being more quiet and distant than usual, and calls on Reverend TimTom to come over and try to find out what's troubling him. Meanwhile, Sue invites an excited Brick to spend a weekend with her at college.
Halloween finds the Hecks in their own "Twilight Zone"-type stories, with Brick providing an introduction to each
Frankie is looking forward to taking part in the annual homecoming tailgate. But she begins to feel like the event will become an embarrassing disaster when her mom, Pat, decides to come out and join in the fun. Meanwhile, with Axl down with a bad case of the stomach flu, Mike turns his attention to Brick to help him win the tailgate cornhole tournament trophy that has eluded him for so long, and Sue volunteers to be the class liaison for Homecoming at the event.
The Hecks agree to forgo Thanksgiving after Frankie finds out that she's out of a job until January and must pick up a holiday position, which requires her to work on Thanksgiving in order to make ends meet.
Axl finds himself in foreign territory when he starts becoming emotional over how his life has turned out, and Mike and Brick find themselves needing to find a bonding experience when the electricity goes out at the house and they are forced to interact with each other
Dr. Goodwin (Jack McBrayer) informs Frankie that she must attend a convention on an all-expense paid trip to Des Moines as part of the dentist office's transition to being part of the Smile Superstars International team.
Meanwhile, Axl informs a disapproving Sue that he's going to move into her dorm room until he finds a new place of his own
Dreading the fact that they are always late to church and end up in the overflow room, Frankie makes the decision to have the family watch a Christmas Eve service on TV from the comfort of the Heck house. But a string of events make their evening anything but a peaceful, silent night
The ever optimistic Sue decides that she wants to become part of a social circle and thrusts herself head first into the college's sorority rush in the hopes of being accepted into a house. Meanwhile, Axl tries to connect Mike into social media in an attempt to help generate awareness of Mike and Rusty's baby-diaper business, and Frankie begins to feel like she's not needed as much in her son's life when Brick goes shopping for a pair of pants by himself.
Axl has big plans for his first day as a business intern at Little Betty.
Sue's professor challenges her to stop seeing the world through rose-colored glasses and really open up and hone in on her critical thinking for a writing assignment.
Mike asks Brick and Axl to help plan a surprise party for Frankie's 50th birthday; Sue posts a sign in the laundry room after losing a sock; coach Babbitt wants to turn Brick into an athlete.
Mike and Frankie attempt to work out which appliance is missing a piece of plastic. A school project sees Brick turning into a tyrannical director.
Co-Guest Stars: Jim Hanna
as Axel's Co-Worker
Mike and Frankie go with Brick to see his first film in a movie theater, where a trailer upsets him. Sue believes that she has a chance at dating Logan. Axl and Sean make a discovery.
A bar mitzvah sees Brick wondering when he will become a man. Sue is a a little bit too enthusiastic after she attempts to become flirtatious.
Frankie looks after Sue and Axl after they have their wisdom teeth removed. Brick attempts to impose some new house rules on everyone.
Having done well in the diaper business, Mike surprises the Heck family with a vacation in Mammoth Cave Kentucky.
Sue has a crush on her college professor and she attempts to get him to notice her. Frankie and Mike meet Brick's girlfriend parents.
Frankie's lunch with Sue starts to become awkward after Sue and her new boyfriend begin to obsess over everything that is wrong with the world.
Some new neighbors with noisy children make it impossible for Frankie to relax on her new backyard lanai.
Frankie informs her family that they don't need to do anything for Mother's Day.
Frankie and Mike try to set a summer vacation curfew for Sue and Axl. Brick wants to find out who he must beat to become the valedictorian in his class.