Alan has a manager's meeting at the Market Giant and Amy has her bowling league; leaving Eric and Cory at home to order pizza and watch Morgan. When Shawn informs them that Amy's bowling league ended six weeks ago, they become suspicious. Could Amy really be cheating on their dad?!
They follow her to the fancy La Bugia. It's dark and plastic grapes hang everywhere but Cory and Eric see enough. Amy is dancing and snuggling up to an unidentified male partner.
Distraught, they return home to tell their dad the bad news. Upon hearing their report, Alan meets Amy outside to tell her they've been busted!
Amy explains to the boys that she was actually dancing with Alan, who had fabricated the manager's meeting story, himself. The boys are upset at being lied to, until they realize that their parents weren't trying to hurt them; they were just trying keep some excitement in their marriage.
Meanwhile, Mr. Feeny asigns the class a word problem that turns out to be impossible. The correct answer is: "There is no correct answer".