. The emergence of the gray world: The survivors gradually discovered that whenever night falls, the world will undergo some strange changes, and the area shrouded in gray fog is full of unknown dangers. 2. The division of humankind: In the face of scarcity of resources, the survivors began to divide into different camps, some choose to plunder, and some choose to cooperate. 3. Scientific research and exploration: Lu Yuan and others tried to use the remaining equipment to study the impact of the red meteor and find a solution. 4. Special abilities: Some survivors awakened special abilities after the disaster. These abilities are not only a guarantee of survival, but also bring new crises.
