Marty and Debbie prepare the Bird-Kersees for their kids' first day of human school. They're especially worried that little Dick Butkus will get picked on, but their anti-bullying advice backfires in ways they never anticipated. Meanwhile, Larry and Jackie are getting tired of the Weavers' endless parenting tips.

Since arriving on Earth, the aliens - led by the Bird-Kersees - have viewed Halloween as a threat and have set up a barrier at the gates of Hidden Hills to prevent children dressed in costumes from entering the community. The Weavers, on the other hand, are excited about their first Halloween in the suburbs and want to open the gates of the community to celebrate. They do their best to explain the ritual of trick-or-treating to the aliens. Meanwhile, Marty and Debbie's fears are realized when Amber, Max and Abby reject their family costume plans.

Debbie and Marty find out more about alien love when the Zabvronian mating season begins; a cute jock asks Amber to a makeout party.

At the school dance Reggie attempts to win over Amber, Debbie tries to recapture the magic of her first encounter with Marty, and Jackie hopes to be romanced by Larry.

Debbie advises Reggie to commit to Giselle so he proposes marriage, which incites Jackie's wrath. Meanwhile Amber decides to break up with her boyfriend.

Debbie is ecstatic when a businesswoman offers to help revitalize her purse business; Jackie jumps in to help, but soon she and Debbie realize they are in way over their heads.