He is an American, a patriot... and a disciplined commando trained to infiltrate and destroy. But a war game gone awry has turned Sergeant Mark Stitzer into a haunted victim of his own madness, a walking instrument of death. Now he is on his own mission-- a mission of vengeance, a journey into hell. — Hunted by the men who trained him, lured by the one person he trusts, he prowls the city, as stealthy as an animal on its own killing grounds. No one-- not the police, not the FBI, not the U.S. Army-- know how to stop him... and no one can predict the terror he is about to unleash.