George Sherman directs this 1950s Western starring Joel McCrea and Yvonne De Carlo. During the American Civil War, Major Clete Mattson (McCrea) arrives at Mexican enclave Zona Libre, having stolen two millon dollars of Union money with which he plans to purchase firearms for the Confederacy. The tyrannical General Eduardo Calleja (Pedro Armendariz) who runs Zona Libre offers him a safe haven for a substantial fee. However, the general's girlfriend Carmelita (De Carlo), who develops feelings for Mattson, warns him that Calleja can't be trusted...