Buck’s new masters are inexperienced and out of place in the wilderness. They overload the sled, beat the dogs, and plan poorly. Halfway through their journey, they begin to run out of food. While the humans bicker, the dogs begin to starve, and the weaker animals soon die. Of an original team of fourteen, only five are still alive when they limp into John Thornton’s camp, still some distance from their destination. Thornton warns them that the ice over which they are traveling is melting and that they may fall through it.