Seven hikers set foot on the "Chinese Dragon's Backbone" Aotai Line, looking forward to conquering the magnificence of nature. However, an unexpected snowstorm imprisoned them in the death zone three thousand meters above sea level.
When the rules of the civilized world are buried in the wind and snow, survival becomes the only belief. Limited food, plummeting body temperature, and hopeless rescue quickly tore the team apart. Calm calculations evolved into ruthless elimination, and selfish competition escalated into naked plunder. Goodwill becomes the first baggage to be discarded in desperate situations, and the abyss of human nature reveals its fangs before every decision - some people betray their companions for a mouthful of food, some use the hand of nature to eradicate dissidents, and some even package their sacrifices as necessary sacrifices for collective survival.
This is not a story of survival from a natural disaster, but a carefully planned experiment on human nature. When the snow-capped mountains finally spit out a few survivors, what they brought down the mountain was no longer glory, but bloody secrets and a lifelong cold that could not be shaken off. The real cold is not in the mountains and fields, but in the hearts of the people.
