Ranger Dave Mannion is deprived of his badge for allowing the notorious Braxton gang to drive diseased cattle past his border patrol. He suspects Eric Prang to be a spy for the gang and sets out to prove it.
| Actor | Role |
|---|---|
 Pete MorrisonDave Mannion | Dave Mannion |
 Trilby ClarkDoris Clayton | Doris Clayton |
| DDolores GardnerDonna Méndez | Donna Méndez |
 Harry von MeterEric Prang | Eric Prang |
 Lafe McKeeDon Pío Méndez | Don Pío Méndez |
| HHarry BelmourPancho | Pancho |
| FFloyd AmesServant | Servant |
 Les BatesBlackie Braxton | Blackie Braxton |
| LLeon De La MotheBandit | Bandit |
| WWalter PattersonBandit | Bandit |
 Milburn MoranteScaby MacGonigal | Scaby MacGonigal |
 Fred BurnsChief of Rangers | Chief of Rangers |
| TTed OliverAssistant Chief | Assistant Chief |
 Charles KingDick Clayton | Dick Clayton |
 Charles BartonDeputy Ranger | Deputy Ranger |
| LLightning the HorseNot listed | Not listed |