Bandit leader El Diablo who controls the country with his gang plans to achieve gold destined for Mexico but he is not the only one.

The small border town of Canyon City is being terrorized by the notorious desperado named El Diablo (Jose Torres). Jeff Benson (Carl Mohner), a mysterious stranger, comes to town and offers to help the sheriff bring El Diablo to justice by setting a trap for him. Benson is accompanied by a goofy cowboy (who provides comic relief). But there's more to Benson than he's letting on. He takes a job herding cattle while continually keeping an eye on and thwarting El Diablo's attempts to rustle the livestock. When the sheriff is requested to escort a trainload of gold through his territory, he enlists Benson's help. El Diablo and his gang conspire to ambush the train, but are in for a big surprise, unaware of the armed escort on board.—Larry B.