The greenhouse effect was reversed, and the earth fell into the "permafrost era". 90% Of the land was covered by glaciers, and the survivors retreated to warm cities powered by geothermal power. {Chen Ye} is Yanzhou Nuancheng's top glacier guide, and is familiar with the passage of life and death on the frozen continent. When the geothermal core of Yanzhou suddenly failed, the temperature of the whole city dropped sharply, and the countdown to death began. Ancient books record that the old-era scientific research base deep in the glacier contains "thermal energy crystals", which are the only salvation. Chen Ye led an expedition team composed of scientists and soldiers on a desperate journey - blizzards, ice cracks, and mutated creatures were approaching step by step. The pursuers of another warm city, the "Cold Territory", wanted to seize crystals and annex Yanzhou.
