When the apocalypse arrives, deliveryman Lin Mo unexpectedly mutates into an awakened zombie who retains his human consciousness, and is bound to the “Apocalypse Five-Star Review System.” To keep his humanity from slipping away completely, he returns to his old job in a zombie’s body, racing through the ruins to deliver supplies and exchanging “Humanity Points” for a chance to survive. From delivering medicine to save people, only to receive a bad review that triggers a zombie horde, to joining forces with a programmer to uncover a conspiracy controlling the hordes, and then exposing the dark truth behind the “Ark Project,” he gradually discovers the shocking secrets behind the virus outbreak and the birth of zombies. As humans and zombies clash and alien reapers draw near, Lin Mo becomes a bridge between the two groups, delivering hope and truth one package at a time. In the end, he leads the survivors in protecting Earth through “consciousness resonance,” completing an ultimate delivery that spans species and determines the survival of civilization.