Watch on 123Movies. "Cactus" Bob Crandall wakes up to find his cattle and his ranch foreman gone, he journeys across the Mexican border to investigate. There he discovers that an American girl, Helen Ware, and her father are being held prisoner by Mendoza, leader of a group of bandits. Cactus and his friend Carter rescue Helen and her father and ride back to the Crandall ranch with the bandits in close pursuit. While the cowboys and bandits are fighting, Mendoza enters the house and carries Helen off, but Cactus overtakes them and kills Mendoza.