Can five former commandos defeat the largest, most comprehensive network of government-sanction assassins in the world? In this high-stakes world, someone's already called the Hangmen before the case even gets to trial.

Rob Greene has information about an undercover terror team inside the CIA led by Joe Connelly. To stay alive with the knowledge, he is advised to stay undercover by his supervisor Andrews. Connelly's men try to kill Greene, but he can escape and warns his son Danny that he also may be in danger and that he should look for Dog Thompson, an old military friend of Greene's. Together with Thompson and Bone Conn, another ex-soldier, Danny tries to escape Connelly's henchmen. Meanwhile, Connelly figures that Danny's friend Lisa would make a good target in order to get Danny and also his father.