Murray becomes an overzealous stage parent when he learns Adam has no interest in the school production of “Fiddler on the Roof.” Meanwhile, Beverly can’t seem to keep from interfering with Erica’s latest career plan.

Murray and Geoff team up to pull Beverly, Barry and Erica out of their shared misery that Lainey has left town. Adam’s dread of gym class is amplified when Coach Mellor’s brother, Coach Nick, arrives and uses fear as a motivator. Meanwhile, Coach Mellor prepares for the next step of his life.

Adam is initially terrified when he and his friends are recruited to the William Penn Academy baseball team, but he quickly catches on to Principal Ball's master plan. A short-sighted Barry is in denial about his pitching skills. Meanwhile, Geoff's dad interferes in his relationship with Erica.

Beverly discovers Murray is actually a year younger than they knew so she plans a do-over at celebrating his 50th birthday, while Coach Mellor attempts to prepare non-athletic Adam for tryouts for pickleball.

Adam is torn between following Beverly's rules when it comes to off-campus lunch or going to the mall food court with his friends. Meanwhile, after using Barry's college ID to get food at the dorm, Geoff goes overboard and becomes the "student" Barry wishes he could be.

Business rival and nemesis "Formica" Mike attempts to make an offer Murray can't refuse by buying Ottoman Empire. Meanwhile, Adam offers Ms. Cinoman his and Erica's original show when William Penn cannot secure the rights to a well-known spring musical to stage.

Adam returns to William Penn Academy as a senior and wrestles with the fact that he is a cool kid and no longer a nerd while his original friend group isn’t as lucky. Meanwhile, Beverly attempts to have a more grown-up relationship with Erica and Barry before they head back to college.

After realizing there may be trouble in lovers' paradise for Erica and Geoff, Beverly involves herself in their relationship as well as Barry and Joanne's to make sure everyone stays together. Meanwhile, Adam and Brea are cast opposite of each other in the school play, but their excitement for one another's success grows dim when one starts to outshine the other onstage.

Missing his Pops, Adam finds himself disenchanted with his once favorite time of year, Halloween, until Beverly encourages Pop Pop to spend time with his grandson. Barry decides to bring his former alter ego, rapper "Big Tasty," back to life; and a chance encounter with the legendary Elvira, Mistress of the Dark, brings Barry and Joanne closer together.

Senior Night is upon William Penn Academy, and Beverly soon discovers she is missing out on the ceremonial adoration presented to mothers with athletic children.  Much to Adam's embarrassment, Beverly pushes for her moment to shine with a kiss and a rose and encourages Principal Ball to establish a Non-Athlete Senior Night.  As Adam attempts to foil his mother's plans, Erica finds herself lacking any interested friends to appoint "pre-wedding fun captain." Reluctantly she engages her eager "sister-in-law to be" Joanna, who inadvertently doesn't meet expectations but ultimately proves herself worthy of being called sister.

Adam and Brea attempt remaining just friends post-breakup, while Beverly goes out of her way to protect Adam from further heartbreak. Meanwhile, Barry tries to get closer with Erica.