Gemma and Dave are adjusting to Grover growing up and becoming a teenager, and Marty and Calvin are struggling with different management styles at work. Also, we meet one of Marty's new employees, Courtney, who might become something more.

Calvin and Tina are looking to remodel their home when they uncover discriminatory processes with their bank's appraiser. Meanwhile, Marty asks Trey for fatherly advice on co-parenting with Courtney.

Calvin is adjusting to getting older and the new stages of parenting, while Malcolm questions his career path. Lamar shows up to spend more time with Grover, which forces Gemma and Dave to loosen the reins a bit.

While Calvin is cooped up at home recovering, he begins spying on his neighbors from the window. He comes to believe that something sketchy is going on across the street, so the whole crew helps him figure out how to catch their new neighbor in the act.

While Gemma is holding a fundraiser for a new school pool, Tina and the other teachers are being overworked. Meanwhile, Dave convinces Calvin to finally commit to doing physical therapy for his knee.

Gemma and Tina are at odds with one another and Dave and Calvin try to bring them back together; Marty is sick and not handling it well, so Malcolm fills in for him and goes to a baby class with Courtney.

Courtney and Marty deal with some baby shower drama with Tina, while Lamar adjusts to a new job at the Fuse Box.

Marty and Courtney's baby name gets spread around because nobody can keep a secret. Meanwhile, Dave is assigned the ever-complicated task of assembling the diaper changing table.

The whole crew heads out to see Toni Braxton live in concert, but just as the show begins, Courtney's water breaks.