Chance tries to figure out why he's the only one of his friends invited to a classmate's party, while the gang pulls off a prank that makes Herman's creepy life-size doll appear to come to life just in time to scare a babysitter.

Hilarity continues when Uncle Will and the kids bring a Loch Ness Pool Monster to life and stage a fake game show "Date My Mom!" to prank a contestant with a series of gross and wild challenges.