In 2006, Myongho crossed the border with his family members with absolutely nothing from North Korea. In South, he becomes a deep-sea diver at the boundary village in between South and North Korea. He puts on 60 kg diving suit, only relying on a single oxygen line from the watercraft, as well as fishes 30 meters down undersea. If the line goes wrong, he can die in any kind of min. Myongho once crossed one of the most dangerous borderline, currently he continuously goes across the line between life and death. This movie will certainly be the picture of a bold man who battles with the life for his household.