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Sent to Mexico to buy a bull, a Wyoming cowhand (Doug McClure) teams up with three Texas Rangers to solve a robbery/murder. Sent to Mexico to buy a bull, a Wyoming cowhand (Doug McClure) teams up with three Texas Rangers to solve a robbery/murder. Sent to Mexico to buy a bull, a Wyoming cowhand (Doug McClure) teams up with three Texas Rangers to solve a robbery/murder. Sent to Mexico to buy a bull, a Wyoming cowhand (Doug McClure) teams up with three Texas Rangers to solve a robbery/murder.