Rio Conchos

Two years after the Civil War, an unlikely team of four men embark on a mission to find a missing cache of Federal rifles; the trail leads them to a private army of ex-Rebels and Apaches, as well as a surreal antebellum mansion built in the middle of the desert along the Rio Conchos River in Mexico. The scouting unit consists of an alcoholic ex-Confederate major (Richard Boone), a gallant but formidable Army captain (Stuart Whitman), a Buffalo Soldier sergeant (Jim Brown), and a likable Mexican prisoner who becomes an ally (Anthony Franciosa). Their mission is to prevent a megalomaniacal ex-Confederate colonel from selling stolen rifles to a band of murderous Apaches.