The Coast Guard (2002): Cast, Box Office & Plot

Private Kang, played by Jang Dong-gun, is a South Korean marine stationed along the coastline near the Korean Demilitarized Zone. He is portrayed as intensely eager to neutralize perceived threats, sometimes with a reckless edge that blurs the line between vigilance and aggression. On a dimly lit night, a drunken local couple trespasses into the fenced-off zone seeking privacy. From the glow of his night-vision scope, Kang spots the man and, mistaking him for a North Korean intruder, fires with rifle and grenade. The fatal mistake triggers a chain reaction of guilt, fear, and unsettled nerves that ripple through the lives nearby and haunt Kang himself.