Decades ago, an elite team of South Korean security officers carried out a covert mission in North Korea to kill the top officials responsible for an attack on the South Korean president. But when the successful team returned to the submarine to take them back to South Korea, a sniper shot all the officers to eliminate all traces of the mission from the outside world. Officer Park Moo Yul (Park Shin Yen) sacrificed his own life to save his best friend, Lee Jin Pyo (Kim Sang Joong), who is the only survivor of the mission known as “Clean Sweep.” To fulfill a promise to his best friend, Jin Pyo kidnaps Moo Yul’s son, Lee Yoon Sung (Lee Min Ho), and raises him in a remote area of Thailand to become an elite combat soldier while patiently plotting to seek revenge on the “Council of Five” Korean government officials who planned operation Clean Sweep. After earning a Ph.D. at the Massachusetts Institute of Technology in the United States, the highly trained Yoon Sung returns to South Korea to work at the Blue House’s National Communication Network Team and carry out Jin Pyo’s plan for revenge under the codename “City Hunter.” Yoon Sung is aided in his quest by Bae Man Duk (Kim Sang Ho), a gambler he saved from thugs in Thailand, and by Kim Na Na (Park Min Young), a Blue House bodyguard who finds out his real identity and falls in love with him. Meanwhile, Prosecutor Kim Young Joo (Lee Joon Hyuk), a son of one of the Council of Five, tries to root out corruption in the government while also trying to track and learn the real identity of the City Hunter. Can Yoon Sung succeed or will his heart get in the way of his ability to follow through with his mission? “City Hunter” is a 2011 South Korean drama series directed by Jin Hyuk. It is based on a famous novel by Japanese writer Tsukasa Hojo.