Hashire! Shiroi Ookami
Plot Summary: A boy named Lasset who lives on a farm in the rural northern US makes a perilous trek through the wilderness to a sanctuary 300 miles to the north to save the life of a gray wolf that he had raised from a puppy after an incident in which the wolf kills the family dog.
Other name: White Fang, 走れ! 白いオオカミ