Rio Lobo

During the American Civil War, a secret Union army payroll train is raided by Confederates, led by Captain Pierre Cordona and Sergeant Tuscarora Phillips. Union Colonel Cord McNally loses his close friend, Lieutenant Ned Forsythe, in the raid, and the complexity of the Confederates' scheme indicates that Union traitors must have provided them with the details about the transport. In the ensuing pursuit, McNally's squad is spread thinner and thinner, until he is left alone and captured by the Confederates. McNally tricks them by leading them to a Union camp and raising the alarm; Cordona and Tuscarora are captured, but refuse to tell McNally who sold them their information.