Veteran American major Asa Barker is one the so-called "military advisors" in the early days of the Vietnam war. Against his better knowledge Barker is obliged to carry out the go-nowhere policies of the American military brass. His current objective is a woebegone, barely crucial outpost, which he must defend with a handful of green soldiers and end-of-tether Vietnamese militiamen. True to his predictions, the outpost is overwhelmed by the Vietcong, who have something to fight about and are ruthless in their tactics. Before the relief troops can arrive, virtually everyone is senselessly killed, including Barker. The only survivor is Corporal Stephen Courcey, a willing draftee whose initial idealism dies along with his comrades.