Lady Lou, a girl of the great Northwest, has inherited the hatred of her own father because of her mother's unfaithfulness. When she discovers that her father, Hatfield, is cheating a stranger in his gambling hall Lady Lou discloses the truth. Hatfield flees from the town. He takes his detested daughter with him, and leaves her to die in the snow. She is rescued by Conahan, a trapper. The big fellow falls in love with the girl and, though he knows nothing of her past, marries her. One day the stranger whose fortune Lady Lou had saved at the risk of her own life happens on Conahan's cabin. The trapper's suspicions are aroused. Then Hatfield himself comes to the place, and flauntingly says to Conahan: "She's no better than her mother, who ran away with another man many years ago." Enraged by the revelation, Conahan goes off into the forests. There he stays, while old Hatfield uses every effort to bring his daughter to a shame worse than death. When the father is about to succeed, Conahan is induced by the pleas of the village priest to return to his wife. He saves her from disgrace.
—Moving Picture World synopsis