The WPF(World Protecting Force) has been the frontline in eliminating any threats to the world. High trained agents combined with the state of the art technology are used in every mission. The agents are taught the way to walk through countries without being detected. They can disappear and appear as the mission tell them to. WPF Headquarter is located in Seoul, South Korea and is heavily guarded. Their firewall is one of the best in the world. Everything went on as usual, until one day. The system was hacked from the outside. All of the classified information were stolen. An undercover agent was framed of hijacking a plane and blew it in the air. Although WPF denied it, a petition to disband WPF was made. Many incidents took place after that, all pointing toward WPF. Almost all agents were either captured or killed. The survivors built a secret base in Busan. Together, they are investigating who is behind the plot to destroy WPF.