A global sudden extreme cold disaster, the temperature plummeted below -40°C within 72 hours, the power grid, communications, and water supply were completely paralyzed, and urban order collapsed. The male protagonist Lin Mo is a 28-year-old former professional outdoor team leader who lives alone. He has stocked up on basic survival supplies in advance. He acts alone throughout the whole process and has no love interest. All plots strictly follow the logic of realistic survival.
