 Prompted by a just-published book that holds ex-lieutenant Ben Tyson accountable for a hushed-up massacre committed by his platoon in a Hue hospital 18 years before, the army recalls Tyson to stand trial for murder. Tyson, confronted by an army authority anxious to save its own face, an embarrassed federal government, and a threatened marriage, and entangled, furthermore, in his own past lives and present sense of guilt, must call on all his cleverness and his own inner toughness to fight his case.