Slip, Sach and the gang think an air-raid test is for real and join the Army.

The Bowery Boys open a nightclub after Sach has his tonsils out and wakes up with a singing voice.

While Louie is on vacation, the boys turn The Sweet Shop into a male escort service, and soon find a group of beautiful girls as their first clients.

The police commissioner asks some local street kids to toughen up his sissy son.

After having been framed by gamblers, Muggs is barred from riding in horse races. Since he can no longer race, he takes up a collection so Ma Brown, who owns the horses, won't have her stable foreclosed on. One of the gamblers involved in the frame, however, falls for Ma Brown's daughter and decides to come clean, confessing to the police about the frame.

Ordered by a judge to get a job, Muggs McGinnis is hired by wealthy Mrs. Murray, who has a penchant for picking up trouble-prone servants. At an engagement party for Mrs. Murray's spoiled daughter Brenda, Muggs enlists his pals as extra help.