A four-day shore leave sends sailors Joe Brady (Gene Kelly) and Clarence Doolittle (Frank Sinatra) skirt-chasing in Tinseltown, but before they even get started, they're shanghaied into returning a young runaway (Dean Stockwell) to his aspiring chanteuse aunt (Kathryn Grayson). Next thing you know, Joe and Clarence are in love with the pretty songstress -- and scrambling to keep their promise of getting her an audition with a celebrated musician.