When retired hitman’s wife goes on vacation with her friend, she asks him to look after the friend's teenage daughter. Things go awry when he is forced to use a little violence to protect the girl from juvenile delinquents, but then they are found dead and the girl is kidnapped.
Because of grandfather's will, Ju Won somehow feel uncomfortable about this flight. He accidentally reunite with a manager of J- one, Gu Reum. After they finished their flight, something shocking happens to Ju Won and Gu Reum.
