Shin is a North Korean, who as a child, attempted to defect to the South with his family but was betrayed, resulting in the deaths of his parents. Plotting genocidal revenge, Shin takes up with a group of Thai pirates and steals a U.S. ship carrying nuclear devices which have been secretly manufactured in Taiwan. He is pursued by Kang Se Jong, a naval officer who attempts to bring Shin to justice, though who gradually comes to understand, and even sympathise with his foe.