An education officer who was dispatched died after a gunshot went off in the dead of night. At the same time, deserters flee to the DMZ in the access control zone, and the 3rd platoon is urgently deployed to the DMZ search operation. There, the crew sees an unidentified soldier, not a deserter or a search crew.

As a child, Woo-young and his sister were mistaken as orphans and were sent to an orphanage, where he had been abused and lost one eyesight due to severe beating. Years later, Woo-young seeks out vengeance and tracks down and kidnaps the former chief of the establishment. But things quickly gets out of hand and he accidentally ends up kidnapping the man's daughter with him- and starts a deadly game of truth or dare.