Jules Vincent, a happy-go-lucky, outgoing French Canadian trapper in the wild Northwest, befriends a beautiful Native American girl, and although he makes an enemy of bully Mike Brody, he agrees to travel with him. When Brody tries to kill them, Vincent kills him in self-defense. He is pursued by a by-the-book, idealistic Constable Pedley, who believes in the mounties' credo "we always get our man." The country is rugged and fraught with dangers like white water rapids, avalanches, wolf packs and desperadoes. After capturing Vincent, the inexperienced Mountie finds he is in no shape to get back to civilization without Vincent's help. Pedley is torn between fulfilling his duty and freeing the man who has saved his life.

Bill's separated from his litter, making friends with the wild creatures until he's found and adopted by young Kathie. An accident separates him from her, and he's drafted into K-9 duty in the trenches until battle fatigue takes its toll and he turns vicious. And even though he finds his way back home, he may be condemned as a killer.