An espionage action film depicting North and South Korean secret agents clashing while investigating crimes occurring on the Vladivostok border. Coincidentally, North Korean Ministry of State Security dispatches Captain Park Geon to investigate a missing person case in Vladivostok. However, the North Korean Consul General of Vladivostok, Hwang Chi-seong feels threatened by Geon's investigation. He looks for dirt in hopes to get rid of Geon and discovers that his former lover, Chae Seon-hwa, is an informant to the South Korean NIS Agent, Manager Zo. Chi-seong uses this information to corner Geon. An unlikely joint operation ensues to take down Consul Chi-seong, who is willing to protect his kingdom at all cost.