As the extreme cold doomsday descends, Lin Heng faces a choice between two options: one hundred tons of premium coal or a custom RV. In his past life, Lin Heng chose coal under the persuasion of his friends, only to be betrayed by them, his coal stolen, and left to die a miserable death in the freezing snow. Reborn back to the day of the choice, Lin Heng resolutely chose the RV and carried out top-tier modifications on it. As the apocalypse arrived on schedule, the RV unexpectedly activated a mysterious system, providing infinite supplies and powerful defense. On the way to find a safe zone, he met the mechanic Zhao Yan, and the two together cut down zombies, repelled the pursuit of evil forces' camp, and finally found a valley to establish a constant-temperature safe zone.