Morgan McKay, a veteran frontiersman, was summoned to the Arapaho camp by their chief, Grey Wolf. McKay is asked to rescue a young Arapaho girl who has been kidnapped by the hated Ute tribe. The Arapaho, decimated by a disease that wiped out half the village, are no longer capable of fighting the Ute. McKay recognises this is a suicide mission, and from where he sits, it's none of his business. Then Grey Wolf slyly hits him with the deal clincher. If McKay doesn't bring back the Arapaho girl, Lisa Flood, a white woman being held prisoner by the Arapaho, will be burned at the stake. With great reluctance on the part of the veteran frontiersman, the bargain is struck, and McKay sets out on what he knows is an almost impossible mission. Still, a bargain, is a bargain, and he doesn't know any other way, than to try and live up to his word, even if it kills him.