It tells the story of Buck, a strong dog, a mix of Saint Bernard and Scottish shepherd, who lives comfortably in California. Suddenly he is stolen and sold as a sled dog, arriving in the Yukon during the gold rush. There he faces a brutal environment: the rigors of the cold, hard work, mistreatment, competition with other dogs, and the abuse of humans.
Buck must adapt and learn the harsh laws of survival: the law of the club, the fang, and instinct. Little by little, his most primitive nature awakens, the wildness within him, as he gradually loses the habits of his domestic life.
It makes one reflect on the relationship between civilization and nature, and on what it means to survive. The narrative is direct, visual, and exciting. It conveys values such as resilience and loyalty.