"When a mother wants him to free her son from the grasp of drug dealers, it sounds like a simple assignment. Knock some heads, give a stern talking to the delinquent. Walk away. But nothing's ever that simple. When the most vicious gang in New York is involved in a conspiracy that can destroy the country's foundations, he has a choice to make. He can back off. Or, he can clean up. The decision, again, is simple."