A series of strange missing and death cases has been taken place in the DMZ – the demilitarized Zone between North and South Korea. The government reacts immediately and sends a group of elite troopers to the border in order to investigate the mysterious happenings. While doing so, First lieutenant Sin Yoo-hwa (Lee Ji-ah) and Captain Jo Jin-ho (Kim Min-joon) are finding evidence that the military of North Korea is involved. But it seems the truth is far more sinister.
讲述在最前方的DMZ(非军事区前哨位置警戒部队)地带,发生了不明原因的神秘事件,为了揭开真相,南北韩的最精英军人们在24小时内展开的作战。正当他们执行任务时,申有花中尉(李智雅饰)及赵真浩大尉(金敏俊饰)却发现北韩军人的踪迹,然而越是为了接近真相而努力,却越是陷入云里雾里。