An old girlfriend from high school visits Joe and he invites to spend the night. Matt accidentally sees the girl get out of the shower, causing Claire to tell Joe he is setting a bad example for the younger boys. Andy, meanwhile, can't face telling Claire that he isn't ready to go to a sleepover birthday party at a neighbor's house.

Perched at a bar on his twenty-first birthday, Joe reminisces about his dad and about turning sixteen, while at home Claire and the gang plan what they hope will be a nifty surprise party.

A merciless driver's-ed teacher may have Matt's future in mind when he passes out grades, but Joe has only revenge in mind when he rallies Matt, Lloyd and Lou in a payback prank on the man.

Andy becomes Joe's good luck charm on a trip to Atlantic City. Meanwhile, bad luck crashes the scene when Matt throws his first big party.

Julia returns hoping to strike up a relationship with Matt again, but his friends aren't part of her plans. Meanwhile, Andy sells his childhood at a garage sale.