One day before the advent of the doomsday, Qin Lang is reborn with memories of his past life. A rain of cards falls from the sky; while others discard them like worn-out shoes, he seizes the initiative to collect them, hoards supplies, acquires the self-healing talent, refixes an RV, and calms down to make layouts. He saves the young actress Lin Wan'er, who is being chased by monsters, and trains her into an ace support and divine archer capable of fighting side by side with him. He also takes in survivors, sets down rules according to labor distribution, and joins hands with partners to fight against endless monsters all the way to Haicheng to find the person he has sworn to protect. This is a growth story of staying calm in times of crisis, standing on one's own feet, and watching out for each other in desperate situations.