The world has been plunged into a desperate situation due to the advent of the ice age, with the vast majority of humans perishing, making survival an extremely arduous task. The protagonist, Zhang Yi, is reborn, carrying the harrowing memory of his previous death. Utilizing the time advantage after rebirth and the unexpected ability of an alternate space, he embarks on his doomsday survival plan. His goal is to stockpile supplies worth billions from the Walmart warehouse to ensure his quality of life during the apocalypse. In the process, he has to not only cope with the difficulties and risks during the collection of supplies but also be vigilant against possible betrayals from those around him. After the doomsday truly arrives, while ensuring his own safety, Zhang Yi gradually takes revenge on those who betrayed him in his previous life, demonstrating the struggle, vengeance, and tenacity of human nature in an extreme environment.