A year ago Thornβs son, Flynn Moss, disappeared into the eco-underground, his only contact with Thorn a series of postcards chronicling his exploits. But a postcard arrives unlike the others, a call for help, Thorn jumps into action, setting off for North Carolina. But before Thorn arrives, heβs intercepted by a federal agent who informs him heβs too lateβFlynn had been acting as an informant for the FBI, and when his traitorous acts were discovered, he was summarily executed.
The agent proposes a scheme to catch Flynnβs killer using Thorn as bait. Thorn, full of rage, accepts the job if only to get his hands on his sonβs killer. The mission takes him to a small town where the gang is holed up, planning an attack on a hog farming operation that has been polluting local rivers and spreading illness through the area.
Little by little Thorn discovers that nothing heβs been told is true, and the trap theyβre setting isnβt for Flynnβs killer, but for his partner, a woman who proves more daring and dangerous than any Thornβs ever met. Sheβs on her own crusade of vengeance, and she and Thorn make an uneasy alliance. With her help Thorn uncovers a conspiracy that stretches far beyond this small Carolina town.