After an attempt at installing a door with mishaps galore, the boys are recruited by the police chief (Bud Jamison) as police officers. The head of the citizen's league, Mr. Dill (John Tyrrell), warns the police commissioner that he must capture the ape man that is terrorizing the city, or he will have his job. The boys get a tip that the ape man is burglarizing a particular store and head out to catch him. They patrol the store, with Curly pausing for a while in a rocking chair aside a cat whose tail happens to swing simultaneously with the rocker. The tail gets caught eventually, causing the cat to screech, and Curly to scurry away.