 Slip and Sach to go the local Air Force base to find out why their friend, an Air Force enlisted man, is in the stockade and charged with treason. Mistaking a recruiting office for a visitors office, they inadvertently enlist in the Air Force. They soon learn that not only is their friend not a traitor, but he is being used as bait to expose a spy ring. The boys decide to do a little exposing of their own, and wind up almost gumming up the works.