Connor invites all the cousins over for an epic sleepover to cheer up his daughter, Gretchen. Meanwhile, Tom is determined to prove he can be a fun uncle too.

Connor invites the siblings to a party he’s throwing for his ex-wife, Emily. While he feels the need to prove that he is cool with their divorce, he is not the only one in the competitive spirit. Tom and Marina try to prove to each other that they still have game, while Sarah finds the perfect solution to the fact that she’s a bad gift-giver.

Tom and Connor vie to prove who would make a better sperm donor to Denise. Meanwhile, Sarah tries to prove to Alison that she has what it takes to direct the spring musical by throwing a successful fundraiser at Connor's house.