Decades after a virus known only as the "Sickness" is released by a secret militant group known as The Silence, Creepers still roam the earth as the dominant, semi-sentient species. Unlike traditional "zombies," Creepers are still partially alive, and thus, they are difficult to kill. Humanity has taken refuge all over the world, some communities in the trees, some underground. But at ground-level? You're in no-man's land. This is Adam Night-Hawk's world, where he lives in a community high in the trees. Life is good, if precarious. Until the ones who messed up the world the first time take a second, unexpected chance.