Near the Korean Demilitarized Zone, Sergeant Lim Gyu-nam of the Korean People’s Army, who is about to be discharged after 10 years of service, prepares to defect from North Korea to South Korea, due to disillusionment with the regime. However, lower-ranking soldier Kim Dong-hyuk, who discovers Gyu-nam’s plan, attempts to escape first, and Gyu-nam, who tries to stop him, is suddenly arrested as a deserter.
Major Li Hyeon-sang of the State Security Ministry who came to the unit to investigate a deserter, transforms Gyu-nam, whom he had known since childhood, into a hero for his efforts to apprehend a deserter, and gives him a position as a direct assistant to the division commander, promoting his performance. He’s trying to raise it.[clarification needed] However, when Gyu-nam makes a full-scale escape, Hyeon-sang begins a pursuit with no way to back down.
In the end, Gyu-nam makes it past the Korean Demilitarized Zone and one of the intervals[clarification needed] of the Military Demarcation Line on the South Korean side, having suffered many injuries inflicted by Hyeon-sang. While Dong-hyuk could not make it, Gyu-nam is able to see Dong-hyuk’s mother safe and sound and pass along the family necklace.