Wealthy rancher Robert Marsh has a relationship with a local Indian woman named Nona, who gives birth to his child. Marsh deserts Nona and their child to marry Vera Blanchard, an Eastern girl, with whom he has a daughter that becomes the "idol of his heart." While hunting, Marsh's gun accidentally explodes, blinding him. His only source of consolation after this tragedy is his daughter. Meanwhile, the Indian child, now a young man, resents the injustice his mother suffered. While the rancher is blind, the Indian son's influence comes into play, leading to dramatic developments rooted in the initial desertion.