After Calvin enjoys attending a hockey game with Dave, Malcolm and Marty wonder if their neighbor is rubbing off too much on their dad; Tina decides to enjoy the perks that come with her "stardom" when she's mistaken for a celebrity.
When Calvin and Dave's college basketball teams go head-to-head, Dave surprises the Butlers with tickets to the game; a friend from Michigan visits and reveals surprising new details about Dave.
When Grover gets into a fight with a bully at school, Gemma is torn between her role as principal and wanting to protect her son; Calvin encourages Marty to stand up to his own bully, only to be shocked when he learns who it is.
When Gemma sets a reluctant Malcolm up on a blind date with a teacher at her school, she discovers new details about the origins of her relationship with Dave; Marty helps Calvin and Tina plan for their future.
As Calvin and Tina near a milestone anniversary, Dave and Gemma help the Butlers have the wedding they missed out on the first time around; Malcolm and Marty prepare an unforgettable performance for their parents' special occasion.
Dave and Gemma host a memorable Thanksgiving in their new home; Dave's politically incorrect mother visits from out of town and meets the Butler family for the first time.
When Malcolm is robbed and won't reveal the thief, Calvin and Dave team up to crack the case of the missing sneakers; Tina takes a unique approach to teaching Gemma self-defense.