A film about a South Korean actress who has been involved in many political activities under President Park Chung-hee's rule. Ch'a Hong-gi persuades Kim Hyong-uk, the former KCIA director to expose the corruption of President Park Chung-hee in a book. After Kim's death, Hong Yong-ja suspects the South Korean government of being involved. She eventually becomes a vice president of International Taekwondo Federation by the help of Ch'a Hong-gi.

During a diving drill, the North Korean army finds an UN patrol ship that was sunk in the Korean War and manages to salvage a document from a waterproof iron box that tells the story of several North Korean soldiers and the female army war correspondent who accompanied them on their fatal mission.