The movie picks up where Balto leaves off and Balto and Jenna are the proud parents of six puppies. Five of the puppies have their mother's husky looks, but the sixth, Aleu, looks even more wolfish than her father. When puppy adoption day arrives Aleu is the only puppy left behind and her parents decide not to tell her it is because she looks like a wolf. Aleu goes to live with her father on Balto's boat, but when he is forced to tell her the reason no human wanted her, she runs away.