A spoof on the "Dragnet" television series features Moe as Detective Halliday, Larry as Detective Tarraday and Shemp as St. Patricks Day. The Boys disguise themselves as women and go undercover to catch a thief.
The stooges go to criminology school and graduate with the lowest possible honors. The boys join the police force and are assigned to track down a crook called the "Eel", who disguises himself as a woman. The stooges track the Eel to a hotel, but he slips through their hands after a wild chase. The stooges are booted off the force and wind up as ditch diggers. This was Shemp's last completed film.