In Whitehead’s post-apocalyptic thriller, the world is divided into two types: the infected and the uninfected. The world has been hit by a plague, but now it is receding and the uninfected are slowly taking back their cities. Mark Spitz is a heavily armed civilian volunteer who is helping to eliminate remaining infected individuals. He and his team are on the island of Manhattan cleaning out Zone One, trying to set up the base for resettlement. Whitehead’s description of a devastated NYC is as frightening as the scenes remembered by his characters.