Young boxer Jim Kane, resting at a New Mexico "health ranch," meets and falls for Peggy Harmon, former nightclub table singer...who needs $600 more for her sickly son to stay in the place. To help her, Jim endangers his health with a tough boxing match in Tijuana. Before long, he's back fighting while Peggy stays in the desert. But in the city, after new triumphs, Jim meets Joan, a teasing Society blonde. Will he see through her before it's too late?