A United States Army officer/trained assassin is sent into the depths of a southeast Asian jungle to seek out a renegade colonel and terminate his command during the Vietnam War.

Lt. Col. Hal Moore is the commander of the First Battalion, Seventh Cavalry. As part of the Pleiku Campaign of late 1965, Moore is assigned to action at Landing Zone X-Ray in the Ia Drang Valley, an area known to be overrun by North Vietnamese troops and nicknamed "The Valley of Death." Moore soon finds himself and his men contained to an area about the size of a football field, surrounded by more than 2,000 enemy troops and engaged in the first major...