Secret Reunion

Secret Reunion (; lit. "Sworn Brothers" or "Blood Brothers") is a 2010 South Korean action film directed by Jang Hoon, and one of the highest grossing Korean films of 2010. The story follows Song Kang-ho as Agent Lee Han-gyoo of the National Intelligence Service (NIS) who is forced out of his job after failing to stop the assassination of a North Korean dissident. The sleeper cell responsible includes relative newcomer Ji-won played by Kang Dong-won, who gets marked as a traitor when the mission goes south. Six years later, both men are working different jobs when they bump into each other and quickly form a bond. This is the second film by director Jang Hoon, who completed Rough Cut two years prior. Plot Ji-won is one of numerous North Korean undercover spies living in South Korea as ordinary citizens until he's called to fulfill his mission: the assassination of Kim Jong-il's second cousin who wrote a book that Pyongyang blasts as a great betrayal to the fatherland. One of his fellow spies, Tae-soon, betrays his orders by switching his allegiance to South Korea and Ji-won mistakenly becomes a target for both Koreas.