In 1983 , the South Korean president and his delegates are visiting Burma when a bomb planted by North Korean agents explodes , killing some high-ranking officials . This historical event is called the Rangoon bombing ( also known as the Rangoon incident ) . To strike back , five South Korean officials plan a covert operation , codenamed " Operation Cleansweep , " to enter North Korea and kill several top members of the North 's high command . Lee Jin-pyo and Park Moo-yul , two Presidential Security Service bodyguards and best friends who were present at the bombing , organize a 21-man team for the mission . However , as the team wreaks havoc in Pyongyang , the five officials abort the plan to avoid an international crisis if the mission is discovered . Their major concern is that the United States will withdraw its nuclear protection if the mission is made public , in light of Seoul 's official declaration that it will not retaliate
Rangoon bombing
Rangoon bombing
City Hunter (TV series)