Assigned the task of remedying a mysterious squeaking noise emanating from the Colonel's car by his assistant, Kelly, the Stooges embark on a series of misadventures.

Subsequently, the Stooges find themselves on the run after Kelly discovers their mishap, seeking refuge in a blockbuster bomb mistaken for a sewer pipe.

Events take a dramatic turn as the blockbuster is dropped behind enemy lines (reflecting the recent British bombing of Cologne, Germany in June 1942).

[1] In a bid to evade capture, Moe and Curly adopt disguises as German officers, while Larry assumes the role of a woman named "Moronica."

Their subterfuge leads to encounters with General Bommel and Marshall Boring (caricatures of German military figures Erwin Rommel and Hermann Göring), respectively, as they navigate a comedic flirtation with "Moronica."