Boston is in the grip of the coldest winter on record, but in its criminal underworld the temperature is rising. Harbor chief Cormack O'Connell has lived his life close to the wire--above and below the law. He knows every movement on his waterfront, and that's why someone wants him out of the way, fast. FBI agent Kit Steele is committed to avenge terrorism. Also known as The Hunter, she's got her eye on the prize. This time it's personal, and she has nothing left to lose. Her prey is Vincente Carpio, one of the world's most dangerous criminals. He is clever and calculating and he's biding his time. Bound by their illicit dealings--and subsequent intimate relationship--Kit and Cormack find themselves in the crosshairs of ruthless international killers determined to fight a war on America's shores.