Kazan, one quarter wolf and three quarters husky, travels to the Canadian wilderness with his owner Thorpe where they meet man named McCready who Kazan recognizes as someone who abused him in the past. When McCready attacks Thorpe''s wife Isobel, Kazan kills McCready and then runs away fearing the harsh punishment for killing a man. He later encounters a wolf pack of which he becomes the new leader, and has a mate, Gray Wolf. One day the pack comes across a sick, old man, Pierre Radisson, his married daughter Joan and her baby girl. Seeing the woman, Kazan turns against his pack, protecting the family from the other wolves. Eventually the pack, with the exception of Gray Wolf, runs away. Joan and her father take Kazan with them and nurse his wounds. After he has recovered, his new owners leave for Pierre''s cabin in Churchill. Gray Wolf follows them at a distance hoping to be reunited with Kazan. Pierre dies on the journey, leaving his daughter, her child and Kazan alone to reach the cabin. That winter Kazan spends the day with Gray Wolf while sleeping at the cabin at night.