In 2077, a genetic virus codenamed "Red Mist" swept across the world. 90% Of humans mutated into bloodthirsty "corrupt mutants" and the civilized order fell apart within three months. Zhang Zhou, a former urban planner, lost his wife and daughter while fleeing. He only took with him a portable terminal with a three-dimensional model of the city and the mechanical dog "Maodou" left by his daughter. He firmly believed that his daughter might survive in the legendary unpolluted "Ark Base", so he traveled through the ruined city, the forest shrouded in red mist, and the resource-depleted mining area. In the process of fighting with the corrupted mutants and competing for resources with the survivors, he gradually transformed from a cowardly ordinary person to a leader who can protect others in the apocalypse. But when he approached the "Ark Base", he discovered that the so-called Land of Hope hid a secret darker than the apocalypse.
