Tasked with breaking up a band of train robbers, railroad lawman Rocky (James Warren) and his sidekick, Chito (John Laurenz), have their work cut out in this classic oater based on a Zane Grey tale. When Rocky learns that his girlfriend's errant brother (Robert Clarke) is a member of the outlaw gang, Rocky faces some tough choices. The first-rate supporting cast includes Nan Leslie, Jane Greer, Harry Woods and Robert Barrat.