Convinced that someone -- or something -- is lurking in the nearby woods, a white trapper (Ben Johnson) and his Indian servant investigate, only to return home and discover that the trapper's daughter (Lana Wood) has been kidnapped by a Cheyenne warrior named Grayeagle (Alex Cord). Grayeagle's captive is terrified of him at first, but her feelings for him change when he reveals himself to be a noble man.