In an extreme cold doomsday, the elderly couple Liu Shouishan and Wang Xiuqin had their last food snatched away by their own biological son, ultimately freezing and starving to death. Unexpectedly reborn to a month before the disaster, the two sell off their family assets, stockpile supplies, and reinforce their old home, swearing to rewrite their destiny. Facing their son and daughter-in-law who are equally reborn yet still greedy and selfish, alongside a succession of food-snatching crises, they hold fast to their rules, protect their family and villagers, and ultimately survive the extreme cold to rebuild a new life.