An unidentified man (Yoon Kye-sang) delivers just about everything from Seoul to PyongYang (across the truce line) within three hours. But this time, it isn't an object that he has to deliver; his mission is to bring In-ok (Kim Gyu-ri), across the truce line. She is the lover of a high ranking North Korean official who fled to South Korea. The man and In-ok sense indefinable emotion as they try to climb over the wired fence and agents from the South make them a dangerous proposal. The North Korean spies who remained in Seoul to punish the male defector make a plan to abduct In-ok. An unforeseeable adventure begins