After the car accident, Jiang Chen woke up on the ashes road filled with red mist. There are no familiar cities here, just rusted steel, roaring steam, wandering corpses and cruel camps. After being rescued by exploration captain Su Wan, he entered the Iron Curtain camp, but found that it may not be safe within the high wall. Relying on the engineering knowledge from the old world, Jiang Chen repaired valves, made guns, and built cities in the wasteland, surviving along the way with Su Wan, Yunxi, Ouyang Bin and others, and finally went from outsiders in the wilderness to a long expedition to rebuild human civilization.