Flute enters the Grimsburg Miniature Competition and is accused of murdering the judge, Jebediah Cupps, after he disqualifies him. Flute tries to clear his name at the local middle school by recreating a miniature model of the crime scene. Then Stan joins his school's Trauma Club.

A swanky murder mystery party turns into a real investigation when the wealthy host is suspiciously found dead. The group splits up to search the scene, where unexpected bonds are formed and Flute finds himself threatened by Stan's impressive detective skills.