In 2024, the situation on the Korean Peninsula has undergone major changes. In order to resist the pressure from the United States, Russia, China and Japan, North Korea and South Korea decided to unify. However, the voices against unification in South Korea are rampant, and "parties" with different political purposes have played a role in fueling the chaos. To this end, the South Korean government formed a new police organization, the Special Mobile Team, to suppress the unrest, which resulted in the Gwacheon accidental shooting. Since then, the Special Mobile Team has been hated by the people and even some politicians, and the Ministry of Public Security has tried to disband the special forces. In 2029, Lin Zhongjing (played by Kang Dongyuan), a member of the special forces who was injured in the latest operation, met with Li Yunxi (played by Han Hyo-joo), the sister of the girl killed in the Gwacheon incident, under the arrangement of Han Shangyu (played by Kim Mu-yeol), his former comrade-in-arms and now a cadre of the Ministry of Public Security. Who knows, this is a trap that concerns the fate of Lin Zhongjing and the entire special forces... This film is adapted from the animation of the same name by Mamoru Oshii.