Deep-space cosmic rays sweep across the globe, while extreme weather wreaks havoc. Modern civilization collapses completely. In Qingxi Village, a remote mountain community cut off from the outside world, the autumn harvest is ruined, the soil and water are contaminated, and plants and animals mutate wildly, leaving the villagers isolated and helpless. Lin Yan, a recent graduate worn out by the pressures of city life, returns home to recuperate, only to see the apocalypse descend three days later. Casting off his laid-back, give-up-on-everything attitude, he learns survival skills and security from scratch, stockpiles supplies, and deals with ferocious beasts, with the support of his father, a retired soldier, his loyal brothers, and the female lead, a medical worker. The chaos tears apart the warmth between neighbors: greedy villagers spread rumors, demand food, and endlessly turn against one another, while outside raiders watch hungrily from the sidelines. Through betrayal and life-or-death trials, Lin Yan sheds his youthful weakness, holds fast to his moral principles, and gradually grows into the village's central leader, guiding the survivors as they struggle to survive, resist natural disasters and human cruelty, and search for a way out.
