Boxer Johnny Bradfield (John Garfield) knocks out a rival in a postfight brawl. Thinking he committed murder, he flees to an Arizona ranch run by hard-as-nails Goldie (Ann Sheridan) and her feisty mother (May Robson) and staffed by Leo Gorcey and the Dead End Kids. Though Johnny is relentlessly dogged by Detective Monty Phelan (Claude Rains), the Kids convince him to finance their future gas station by training for and winning a high stakes prizefight. But just as things seem to going "swell" for both Johnny and the Kids, Phelan shows up ready to take Johnny back east in handcuffs? Or is he?