Marty and Debbie decide to make plans with their human friends after Larry and Jackie have become too entangled in their daily lives. The Weavers do their best to un-invite the Bird-Kersees, explaining they’re afraid their friends won’t be accepting of the aliens. But that doesn’t stop Larry and Jackie from crashing Marty’s’ poker night and Debbie’s girls’ night on the town — with hilarious results.