In 2035, an American journalist from a broadcasting network visits South Korea to shoot a documentary commemorating the 10th anniversary of Korean reunification. While interviewing North Korean defectors, students, soldiers, and famous announcers, he becomes intrigued by their extreme sensitivity whenever the topic of an explosion during reunification arises. When he learns that his colleague, who was covering the same story, has gone missing, he begins to suspect that there is a hidden secret behind the reunification.
