Bullets Don't Argue (1964)

Sheriff Pat Garrett (Rod Cameron) pursues two bank robbing bandits across the border into Mexico intent on bringing them back to face justice for the killing of the two staff members unlucky enough to have recognised them during the raid. Identified as local brothers Billy and George Clayton (Angel Aranda and Horst Frank) the bandits are easy to locate but prove harder for Garrett to transport back, especially once the existence of the $30,000 swag comes to the attention of mexican gang leader Santero (Mimmo Palmara) and he and his men pursue the lawman and his prisoners across the desert.