Programmer Shen Yuan wakes up in the zombie apocalypse and awakens the “Garbage Collection System.” He can refine zombies to obtain memory fragments and enhancement cores. However, he soon discovers that Tianhuo Base has put out a warrant for him, branding him the “cause of the apocalypse.” While on the run, he meets the mysterious warrior Su Qing and learns from the memory fragments that the apocalypse virus originated in a laboratory, and that the person who pressed the start button was none other than himself.
Shen Yuan gradually uncovers the truth: he is not a clone, but the biological son of the original Shen Yuan. To save a world ravaged by the virus, the original created a reboot code and bound his son’s memories to the System. The ambitious Han Mo hunts Shen Yuan to reclaim the code, intending to use the reboot device to rule the world.
At last, Shen Yuan faces Han Mo at the observatory and kills him with the Doomsday Furnace. He activates the reboot code, sacrificing half his memories to bring his younger sister Shen Lan’s consciousness back to life and restore the world’s zombies to human form. The world returns to the light, but a strange fissure appears on the horizon, and a new threat quietly draws near…