Tommy Banning (Bobby Jordan) and his pals,"Pig" (Huntz Hall), "Ape" (Norman Abbott) and "String" (Gabriel Dell) have jobs in a department store where store executive Frank Moulto (Frank Albertson) is romantically attracted to Sheila Banning (Evelyn Ankers), Tommy's sister. Frank is also secretly involved with a gang of truck hijackers. When a load of silk is to be hi-jacked, he tries to involve Tommy in the theft, but Tommy rejects his proposition. Frank frames Tommy with the theft of some jewelry. Tommy is jailed and his friends are fired. Tommy is befriended by Jerry (Don Terry), who also has an interest in Sheila, but Sheila remains loyal to Frank without knowing of his criminal activities. Released on bail, Tommy follows Frank to a warehouse where the gang is plotting to hi-jack one of the store's trucks. Tommy rounds up his pals and they return to the warehouse and the slug'em donnybrook is on.