On the thirty-seventh day of the end, Gu Yan was pierced through the heart by a fourth-order mutant. He was the last human being in the wasteland. After his death, the red light of the last human refuge in the wasteland finally went out on the monitoring station. Then he woke up in a creaking iron frame bed, next to the bed was a pair of clean sneakers that he had not seen since the end of the world. There was busy traffic outside the window, and the aroma of soy milk wafted from the breakfast shop downstairs. He went back to a month before the end. In this life, there are only three items on his bucket list: first, to hoard enough supplies; second, to build a greenhouse that can grow tomatoes in the wasteland; third, to find out one by one the people who abandoned him in the tide of corpses. Until he picked up a burnt military dog tag at the entrance of an alley. He recognized the name on the dog tag - it was the man who drove a modified armored vehicle and dragged him into the car from the tide of corpses on the thirty-seventh day after the apocalypse in the previous life. A line of cold gray letters suddenly appeared from the depths of his left eye: "The abnormal rules have been activated. Countdown: thirty days."