Two spies share a secret bond, despite their loyalties. A North Korean assassin is sent to Seoul to kill a dissident, but instead he teams up with a South Korean agent in search for revenge.
Secret Reunion is a 2010 South Korean action film directed by Jang Hoon, and one of the highest grossing Korean films of 2010. It follows Song Kang-ho as a former National Intelligence Service (NIS) agent and a North Korean sleeper operative who, years after a failed assassination, unexpectedly reunite and form an unlikely bond.