Buck is introduced to the fellow sled dogs, and begins to learn the ways of the Klondike. Buck is introduced to his enemy Spitz as well.
Spitz and Buck have always had their issues but this is the scene when Spitz starts the fight with BUck while the rabid dogs are also attacking. Spitz started the fight while Buck finished it, and is now leader or Alpha of the team. This brings him great dominance and assures the team that he is the head dog and anyone who challenges him will die like Spitz.
John Thornton and his two friends are killed by the native americans while Buck was gone running with the wolf. Buck is devastated and goes into the wild once again.
Buck went on a search for the wolf that he had met before, and longed to live like he did.
Buck becomes part of the pack, and become the alpha of the wolves. His wildside is embraced and he has puppies with one of the female wolves.