American surveyor William MacDonald visits an Ojibway village in the Canadian Northwest. He seduces a local half-breed girl named Annette while her fiancé Baptiste and half-brother Jules are away trapping. MacDonald then abandons her. When Annette realizes she is pregnant, she wanders into the forest while delirious and is killed by wolves. Jules and Baptiste seek revenge. They track MacDonald to the cabin of a cruel Scotsman, Andrew MacTavish, whose daughter Hilda is loved by Jules. MacDonald tries to convince MacTavish to let him take Hilda to America. Hilda falls in love with Jules instead. When Hilda, Jules, and Baptiste try to escape in a canoe, MacDonald follows them. Jules fights MacDonald in a duel with guns and knives, killing MacDonald before leaving for Montreal with Hilda.