By Pierce Conran
After his father's failed mission in the South, Myung-hoon and his sister are sent to a prison camp in North Korea. Accepting his own mission as an undercover spy to protect his sister from further harm, Myung-hoon infiltrates the south, where he poses as a high school student. He ends up helping a bullied girl in his school while going out interrogating people to learn what happened to his father during his free time. Soon his government learns what he is up to and sends someone to kill him.