On November 11, 1942, Congress approved lowering the draft age to 18 and raising the upper limit to age 37. Due to the expected increase in the number of new soldiers, more officers are sought. Five sergeants of the regiment are selected for commission as officers, including Staff Sergeant "Dodo" Doubleday, but excluding Sergeant Ames. Prior to Dodo's officer training, the two sergeants must train two platoons from a new intake of draftees from backwoods areas. Using the strengths of the backwoodsmen, S/Sgt. Doubleday excels again. His platoon is selected to perform
military police duties on a weekend furlough. Mr Arnold Benedict has offered his large house for the entertainment of the soldiers, but Joan, Dodo's girlfriend and a hostess discovers they are really a Nazi spy ring obtaining information from the soldiers. == Cast ==