Chet Brynes has his hands full taking care of his family and running his ranch in Arizona Territory. But he takes his responsibilities as a deputy U.S. marshal very seriously. Bandits have been crossing the border, cutting a bloody swath of mayhem and high-tailing it back to safety in Mexico. The chief U.S. marshal asks Chet to lead a secret task force to found them up - dead or alive. But the bandits fight back - putting a five-hundred-dollar bounty on Chet's head. Now its kill or be killed in a life-or-death showdown.