In a post-apocalyptic world, society reverts to the lawlessness of the old West. Twelve-year-old Henry Arnaught is given the task by the dying town of Two Notch's rector and dictator to find and hire a remorseless Killer named Abel Decker to defend their town against a band of approaching marauders. It is a trek that will bring Henry face to face with the man people call the Devil himself and change the boy's life forever.