It tells the story of barker, a beloved dog of judge miller's family, who has been living in a warm valley in southern California after being civilized.After being sold to the cold and remote north of the United States, rich in gold Alaska, became a sled dog.The story is about a dog's experience as a dog in the civilized world forced by its master to return to barbarism.

The dog in the novel has the independent appreciation of life.Dog is no longer a simple tool and appendage in the traditional sense, but a strong life with its own value and meaning.When the author writes about buck, he emphasizes his self-esteem many times. When buck finds out that he is trafficked, he feels his wounded self-esteem and thinks that his dignity has been violated.Here, the dog fully displays its subjective consciousness. It also has its own dignity and pride, and is not a puppet allowing human beings to control their destiny.After he defeats the lead dog, spitz, the hero, francois, lets another dog lead.Buck persisted in his intransigence, and francois taught him with his stick. He still battled with him for more than an hour, and finally stood smiling in the place he had won.Buck was full of hot life force, exuding the surging breath of life.