Tom Grey, a prospector, is journeying west with his family when they are attacked by Indians, and he is killed and his son captured. His widow marries a man who has two children, Dick and Mabel. Mabel encourages Dick to set out to find their missing half-brother. Dick comes under the influence of the evil Mike Clancy, and gambles away his money and tries to get more from Mabel. Mabel decides to join the search herself meets Jack Gordon, an honest gambler, who is impressed with Mabel's sincerity and determines to help her. They eventually hear about the existence of Mabel and Dick's brother, who is now an Indian chief called Little Bear. Complications ensue.