Back in the US after serving as a Navy SEAL in Vietnam, John Kelly meets a woman who will change his life forever. She has recently escaped from a nightmare world of unimaginable suffering, yet before they can plan a future together, the horrors of her past reach out to snatch her from him. Kelly vows to gain revenge -- but finds there are others who have need of his deadly skills. In Washington a high-risk operation is being planned to rescue a key group of prisoners from a POW camp deep within North Vietnam. Kelly has his own mission; the Pentagon want him for theirs.