April, 1945. As the Allies make their final push in the European Theater, a battle-hardened army sergeant commands a Sherman tank with a five-man crew on a deadly mission behind enemy lines.
After the assassination of President Park, martial law has been declared. A coup d'état bursts out by Defense Security Commander Chun Doo-gwang and a private band of officers following him. Capital Defense Commander Lee Tae-shin, an obstinate soldier who believes the military should not take political actions, fights against Chun Doo-gwang to stop him. The conflict between the two grows while military leaders are holding their decision and Defense Minister is gone. In the midst of chaos, the spring of Seoul that everyone longed for heads to unexpected direction.
An expelled boxing champion, who now is a high-school teacher, witnesses intolerable violence and throws her first punch to build justice against it, while putting on a mask.
Han, a Filipino-Korean boxer hits the final punch against his opponent at an illegal game and returns home with a few dollars to pay for his mother's surgery.