Seven-year-old Nova Smith is unsure of his identity. Still, he runs sixty miles a day and is learning deadly martial arts from his mother. When he first meets fellow classmate Flora August, he feels an immediate connection and a need to protect her from everything dark and evil in the world. But little does he know that a zombie apocalypse, led by a mysterious figure who works in mysterious ways, is about to take over the world.
When Nova discovers that he is not like other humans, he uses his newfound superhuman powers to hunt and fight zombies, thugs, and other creatures. As a chain of events unfurls, Nova discovers a mystical system that can do wonders, uses the remains to power his halo, and works to transform zombies into human form. While he reclaims Northern America, humanity creates a cure that may help the zombies return to their human selves, Flora is transformed into a zombie, and people begin seeing Nova as a monster, not a leader. Will he lose everyone and everything he once cared about in a world where zombies are pushing civilization into darkness?