Capt. Harper's cavalry patrol returns to the fort to find it besieged by Ute Indians. The apparent cause is the recapture of Army traitor Brett Halliday, who deserted to the Utes in a previous war; but Brett has a different story. With capture imminent, the only chance for the surviving men (and one woman) is to boat down a wild, uncharted river, where Harper and Halliday must pull together, like it or not.
Dana Andrews
as Brett Halliday
Piper Laurie
as Laura Evans
Rex Reason
as Lieutenant Wayne Ford
William Talman
as Captain Harper
Milburn Stone
as Sergeant Miles
Douglas Spencer
as Garode
Gordon Jones
as Corporal Rogers
William Schallert
as Private Livingston
Robert J. Wilke
as First Sergeant Daly (as Robert Wilke)
William Phipps
as Private Porter (as Bill Phipps)
Pat Hogan
as Delche
Peter Coe
as Ute Prisoner