About the Book: After serving as a tunnel rat in Vietnam, Cal Dexter is hired to hunt down and kill Zilic, a brutal Serbian warlord responsible for the murder of an innocent aid worker. Seeking personal revenge, Dexter’s mission quickly escalates from a solo pursuit to a high-stakes international conflict. As he closes in on his target in a heavily fortified compound, Dexter is led into a deadly trap, and the CIA, fearing his quest will trigger global chaos, moves to stop him by any means necessary.