On the thirtieth day of the doomsday arrival, Lin Yuan guards the Yuansheng Supermarket, which possesses the ability of domain domination, lighting lamps day and night and bitterly waiting for his girlfriend Su Wan, who went out to buy medicine and went missing. In the rainy night, Su Wan, who has become a special zombie, returns holding stomach medicine, but attracts the gang of the predator Zhou Han. Lin Yuan uses domain power to deter the villains and sets iron rules for the supermarket. Even though his lover mutates, he still protects Su Wan, and the two depend on each other and guard each other in the desperate supermarket.