While on a family trip to the flea market, Bob and Linda are haunted by a lie they told Tina, Gene and Louise about what really happened to their beloved stuffed animal, Wheelie Mammoth.
Stewie designs a "Terminator" Peter robot to destroy Lois for trying to feed him broccoli, but when things don't go according to plan, Stewie and Brian must go on a Terminator-esque mission to save Stewie's life.
The Gallaghers disagree on the fate of their childhood home so a stranded Frank tries to get back to weigh in on the matter. Realizing that they have none, Ian and Mickey embark on a journey to find gay friends. Carl is upset after his night with Tish, and Debbie and Sandy have another visitor from Sandy's past. Lip and Brad get ready to sell stolen bikes while Kevin has to think fast when he's spotted riding a stolen chopper. Veronica hopes to pass the rent control bill with Liam's help, but receives some unexpected news.
An adventure for Daryl and Carol turns sideways when they come across an old cabin. It takes Daryl back to the years when he left the group after Rick disappeared as he relives a time that only the apocalypse could manifest.