In 2077 AD, the "heat dome" effect caused by excessive human emissions exceeded the critical value, and the world entered an era of irreversible high temperatures. The surface temperature soars to above 70°C during the day, and ultraviolet rays can burn the skin within ten minutes. It can only drop to 45°C briefly at night. Former cities have been reduced to scorching steel tombs, ocean evaporation has intensified, and freshwater resources have become a hard currency more precious than gold.
The protagonist, Liu Hao, is an ordinary urban water supply and drainage engineer. On the night of the high temperature disaster, he luckily escaped widespread circuit paralysis because he worked overtime to repair pipelines. With his homemade simple cooling equipment and a small amount of supplies in reserve, he shuttled through the ruins of the city melted by the scorching sun, looking for his lost sister. On the way, he encountered thugs who robbed water sources, and "high-temperature oligarchs" who relied on monopolizing materials to control survivors. He also met doctors Su Qing, veteran Zhao Gang and other partners. They drove a modified high-temperature off-road vehicle, starting from the flame-wrapped North China Plain and crossing the dry and cracked Yellow River Ancient Road. Their goal was the legendary "Hantan Base" located in the Changbai Mountains in the northeast, protected by virgin forests and low temperature zones. This journey of survival spanning thousands of miles not only requires fighting against extreme heat, sandstorms and mutated creatures, but also confronts the greed, betrayal and perseverance of human nature in the doomsday world. Liu Hao relied on his professional knowledge to modify filtration equipment to obtain water sources and use underground pipes to build temporary shelters. He gradually grew from an ordinary person who just wanted to protect his family to a leader who led survivors to find hope. What he didn't know was that behind the "Hantan Base", there were also shocking secrets about the high temperature disaster.