Master Gunnery Sergeant Thomas Beckett is the U.S. Marine Corps' most decorated sniper. Having taken out warlords, drug kingpins and international assassins Beckett must now face the ultimate enemy when it is discovered that his best friend Paul Finnegan, believed to have been killed in action, has been operating secretly and become a danger to the US - and the world. An undercover agent working in Vietnam has flushed Finnegan from hiding and he is a criminal force beyond any the marine Corps expected. Now, there will be one chance to take him out - and it's Beckett who will take the shot.