When the South loses the war, Confederate veteran O'Meara goes West, joins the Sioux, takes a wife and refuses to be an American but he must choose a side when the Sioux go to war against the U.S. Army.
Not streaming on a subscription service in the US right now.
Starring Rod Steiger, Sara Montiel, Brian Keith, Ralph Meeker, Jay C. Flippen, Charles Bronson, Olive Carey, H.M. Wynant, Neyle Morrow, Frank De Kova