Vietnam War veteran Sam Wood is a survivor of a vicious prison camp where he was brutally and painfully tortured before finally managing to escape. Then he returns to rescue his friends. Vietnam War veteran Sam Wood is a survivor of a vicious prison camp where he was brutally and painfully tortured before finally managing to escape. Then he returns to rescue his friends. Vietnam War veteran Sam Wood is a survivor of a vicious prison camp where he was brutally and painfully tortured before finally managing to escape. Then he returns to rescue his friends. Vietnam War veteran Sam Wood is a survivor of a vicious prison camp where he was brutally and painfully tortured before finally managing to escape. Then he returns to rescue his friends.