Pancha O'Brien, the beautiful and spirited daughter of an Irish ranch owner, is loved by two men, Sheriff Jack Webb, whom she loves, and outlaw Jim Dyke, whose attentions she repeatedly rebuffs. Jim and his men attack Pancha's ranch, burning it to the ground and killing her father. The outlaw carries her to his cabin, where Wan-o-mee, his jealous squaw, tries to stab the girl. Pancha explains that she does not love Jim and sends Wan-o-mee to find Sheriff Jack. Stalling for time, Pancha agrees to marry Jim, and the two set out for Cheyenne. Jack and his posse overtake them on the road, but Pancha has already stabbed Jim, and he falls dead at the sheriff's feet. To protect Pancha, Jack claims that he killed the outlaw and then proposes to her.