 Gene Autry (Gene Autry), named as the executor of an estate belonging to Randy Pryor (Dickie Jones as Dick Jones), enters his young, headstrong ward in New Mexico Military Institute, the famous military-prep school in Roswell, New Mexico, in an effort to get him away from the influence of gamblers led by Pat Feeney (Robert Armstrong) and Gig Jackson (Frankie Darro). When the gang frames Randy for a killing, Gene, Eileen McDonald (Gail Davis), Randy s cousin, and the hard-riding cadets of NMMI swing into action to clear his name.