Florence schemes to marry Charles because of his wealth. She succeeds in securing an invitation to accompany Charles and his mother on a trip West. In the Pueblo country, the boy meets Wildflower, an Indian maiden, and induces her to elope with him. The two are married by a priest in a monastery nearby. A year later, Charles brings his wife East to his parents, and Wildflower charms the Bartells' friends, but Florence causes trouble between Wildflower and Charles. Before long, the husband becomes ashamed of his wife. Shortly afterward a son is born. Because the infant shows its Indian blood, Charles leaves the house in a rage. Brokenhearted, Wildflower decides to return to her own people. Two years later, Charles secures a divorce and marries Florence. Eighteen years pass; Eagle Heart, a half-breed attending the Government School, falls in love with Bess, Florence's daughter. The lad is about to return to his people. His sweetheart promises to induce her parents to come to the Pueblo country, his home. Bess prevails upon her father to make the trip. Charles and his daughter reach the village, where the former met Wildflower years before. While her father is examining some Indian ware, Bess and Big Heart steal off. Later, Charles comes upon the two. He angrily forces Bess from her lover's arms. An old squaw makes way to the spot. Big Heart greets her as his mother. The woman gazes upon Charles, who starts back. It is Wildflower. The latter attempts to knife the man, but is disarmed by her son. Thus do the horror-stricken lovers learn that they are brother and sister. Overwhelmed with remorse, Charles turns away.
—Moving Picture World synopsis