The White Fang.

According to the story by Jack London. The history of the wild wolf, who picked up the boy and raised an Indian. After falling to the evil man - the owner of the bar, White Fang turned into a ferocious evil beast, coming out victorious from all the dog fights, which suited his enterprising owner. But once it strangled, snatched from the jaws of the bulldog engineer Weedon Scott. His kindness has transformed the beast.