A police detective who loses everything to a criminal organization seeks payback when he gains special abilities through biotechnology.

During the Japanese colonial era, roughly 400 Korean people, who were forced onto Battleship Island (‘Hashima Island’) to mine for coal, attempt to escape.

Under the oppressive Japanese colonial rule, Deok-hye, the last Princess of the declining Joseon Dynasty, is forced to move to Japan. She spends her days missing home, while struggling to maintain dignity as a princess. After a series of failed tries, Deok-hye makes her final attempt to return home with help of her childhood sweetheart, Jang-han.

A resistance group in Japanese-occupied Korea breaks a sniper out of prison to carry out an assassination, unaware that a traitor lurks among them.