Peter, Quagmire, Joe and Cleveland form a neighborhood detective agency, and are stunned to discover that Chris is a thief. Meanwhile, Lois is worried about Chris' delusional relationship with his new girlfriend, but also sees it as an opportunity for Peter to copy Chris' romantic gestures.

Meg begins working at a retirement community and starts stealing from the residents. Then Chris finds out and wants in on the heist. When the residents catch them, they blackmail them and force the thieves to listen to all of their boring stories.