 Vietnam. 1972. US Army Special Forces Major Cliff Marquette (David Morse) leads a squad ordered to investigate unusual reports and secure a remote jungle temple which locals believe to have mystical powers. The Marines guarding the temple have been withholding provisions for days from a Viet Cong prisoner, who shows no signs of suffering. In fact the man lies bound to a stone slab in the temple with an inexplicable smile on his face. Marquette confronts the Marine in charge, Garris (John C. McGinley), and threatens to charge him with torturing a prisoner of war. Their argument is interrupted when mortar shells rock the temple and blasts of gunfire erupt outside. An exceptionally heroic, but ultimately losing battle lands Marquette in the hands of a merciless Viet Cong torturer. Marquette gains consciousness bound to the very temple slab the smiling prisoner escaped. His men are dead; his screams unheeded. At the height of agony, Marquette s world is suddenly turned upside down. In the blink of an eye, he finds himself home, living an idyllic life in the US, with a loving wife and children that he s never seen before.As Marquette struggles to take in what-- and how-- this is happening to him, he discovers the cruel pain of war is not over after all. As the clock strikes midnight every night, Marquette is back in Vietnam, and his torture resumes a few minutes each time. Trapped in unending cycle of pain, he must find a way to endure -- unless, with the clock counting down, Marquette can cheat fate. Escaping will take his wits. And it will require a gun.