Rocky and Chito, undercover investigators, are hired by a banking company to thwart a ruthless gang of train robbers who are preying on trains carrying the bank's payroll. As Rocky learns more about the robbers, he also uncovers the dark and foreboding secrets of their favorite roost, Sunset Pass. Undaunted, Rocky and Chito decide to confront the gang at the pass in an unforgettable, explosive showdown.
A classic Western based on a Zane Grey novel, SUNSET PASS follows Rocky (James Warren) and his sidekick Chito (John Laurenz) on their attempt to recover some stolen money. They arrest Ash Preston (Robert Clarke), but when he nurses an injured Rocky back to health they let him off the hook. It's not to be that easy, however, as now the group must contend with the devious machinations of Ash's ex-partner, Cinnabar.