loss of both civilian and agent lives. As a result, he must make ends meet as a private investigator in returning runaway foreign brides to their husbands and shutting down a ring of corrupt businessmen that are ripping them off. During that time, a former associate of Han-gyoo reaches out for his help. While secretly spying on Ji-won when he's out, Han-gyoo discovers Shadow, along with three other important people. He and Kyeong-nam confront Pastor Lee about his involvement. Pastor Lee reveals Ji-won's real name, Jo In-joon and that he has family back in North Korea. He hasn't seen his wife and daughter for seven years. When the North Korean government mistakenly labeled him a traitor, Ji-won is forced to hide away in South Korea. He was desperate and came to Pastor Lee for help in getting his family out of North Korea for a better life. It was then Han-gyoo finally realized what the apartment payment was meant for, his family. Before Pastor Lee could help Ji-won get his family out, the nuclear incident occurred and naturally the borders tightened. The next day, Ji-won comes across Tae-soon's body and feels guilty for attacking him earlier. An agent from NIS recognizes him and orders Ji-won to turn himself in. When Lee discovers that the watch was fitted with a GPS system, he desperately follows Ji-won and tries to warn him to get rid of the watch. In the car, Shadow gives him one last chance to prove himself to their home country. The North Korean professor has betrayed them by revealing the secrets to NIS, thus they must get rid of him. Once killing him, Han-gyoo arrives and takes off Ji-won's watch, which gets him stabbed. It was then he learns that Shadow was the real traitor in his killing spree and realized that he was the one who kept him from being with his family. Betrayed, Ji-won attempts to fight him of, but is shot and Lee kills Shadow. NIS thanks him for his help, but Han-gyoo doesn't return as an agent and remains a PI, at least until the superior retires. Encouraged by Ji-won's letter to visit his own family in England, he does and is surprised to see Ji-won and his family on the same flight. Cast Song Kang-ho as Lee Han-gyoo, a NIS agent Gang Dong-won as Song Ji-won, a spy from North Korea Jeon Gook-hwan