Pierre and Baptiste, French-Canadian half-breed trappers, are enamored of Mary, the factor's daughter. Both men propose to the girl, both are refused. Baptiste, mad with jealous rage, abducts the girl and carries her off to a lonely cabin in the wilderness. She defies him, throws his proffered ring at him and is chained to the floor to change her mind. Pierre trails them through the pathless forest, and sets a trap in the path of Baptiste. He traps the abductor, but before he can reach him, to wreak vengeance, is himself caught in a giant trap Baptiste has set for a cougar. The wolves make short work of the rivals, and Mary is rescued by the timely arrival of her father and other trappers the next day.