Balto has accomplished a lot in the past 4 years, from the serum run, to rescuing Duke, to just plain being a father to his 6 now grown children. And with Balto finally being accepted in Nome by both dogs and humans alike, he couldn't be happier. However, when starts having vivid dreams of his daughter Aleu being in danger, he must once again head off to save the wolf pack. But while he undertakes this journey, secrets about his past are revealed as well as a personal bloodline and heritage beyond his imagination.