Released from prison following the bombing of Hiroshima, Kang Dae-sun tries to return to Korea but, because of the chaos at the end of the war, fails to secure passage.

Hyeong-do, who has a history of criminal behavior, kills his friend during a fight. He raises his friend's son to atone for his action while setting up a criminal organization. The innocent son is framed for murder by a rival gang and Hyeong-do must figure out a way to rescue him.