The story starts off with the narrator talking about and old man named Koskoosh, who I think is an old noble of an Indian tribe if not the chief. He is an old man none the less. The seasons are changing so the tribe is migrating and he is too old to make the trip and not hold his family back. So his family is going to leave him behind basically to die. The old man is alright with this because he knows how nature works and knows that he has to accept the fact that he will die. He starts thinking of old stories of his past and that he was told while he sits by the fire and waits for his time to die.
I think that from the very beginning you can see elements of London's political ideologies brought out in his story. I think that the main theme is survival of the fittest. When his son says "is it well with you?" he is asking his father if it is right to just leave him there. The father says "it is well" which obviously means that he (his son) is doing the right thing by leaving him.
While the old man was sitting by the fire, he started thinking about old stories. The narrator tells a story of the old man as a child going hunting with one of his friends. They were tracking a moose and watched the moose get killed by wolves. I think that this story is the focus of the story. The moose runs from the pack of wolves and gets trapped at one time. The moose then kills one of the wolves and runs again. He gets taken down and gets back up twice. Then the moose runs again and tramples two more wolves. Eventually, the wolf pack pinned