As the apocalypse approaches, the old convenience store becomes the only exchange that still respects the rules. Lu Chen holds an old key, collecting water, medicine, and rice during the day, and sheltering disaster employees who lose control at night. The black dog led people to block the door. Qiu Zhiqiang stared at the cold chain warehouse, but something inanimate in the back of the car was knocking on the door. If you want to live, you have to trade; if you want to rob, you have to pay the price first.