Book excerpt: At the height of the Vietnam War, Lt. Colonel Gene Hambleton's memory was filled with highly classified information that the Soviets and North Vietnamese badly want. When Hambleton was shot down in the midst of North Vietnam's Easter Offensive, US forces placed the entire war on hold to save a single man hiding amongst 30,000 enemy troops and tanks. After other missions fail, Navy SEAL Thomas Norris and his Vietnamese guide, Nguyen Van Kiet, volunteer to go in on foot. Talty describes the riveting story of one of the greatest rescue missions in the history of the Special Forces. -- adapted from jacket