The movie "Knight of Doom" is directed by Cho Eui-seok, written by Cho Eui-seok, Xin Nianzhu, Kim Hyun-deok, Kim Woo-bin, Song Seung-heon, Starring Jiang Youxi and Li Xu. The film is adapted from the webtoon of the same name created by Lee Yoon Kyun. It tells the story of the legendary courier 5-8 and the refugee April against the new world ruler Cheonmyung Group in the future Korean peninsula where air pollution is so severe that no oxygen can survive.
The story takes place in the Korean peninsula, which was gradually deserted after being hit by a comet. , only 1% of humans survived, relying on respirators for life support and bound by a strict social class system. In this special environment, the job of the courier is to deliver oxygen and daily necessities to the surviving people. However, this job is not easy. The courier must have tenth-level combat effectiveness, keen insight and excellent speed. against oxygen-hungry hunters.
The protagonist 5-8 (played by Kim Woo Bin) is a courier from the refugee area , he accidentally implanted a QR code, so he was given the task of escorting oxygen. As resources become scarcer, hunters become more cunning. At the same time, Si Yue (played by Jiang Youxi), who also came from the refugee area, was rescued in an accident. He regarded Xue'e (played by Li Xu), Major of the National Defense Security Command, as his savior, and determined to become a courier like 5-8. member.
However, Yoo Suk (played by Song Seung Heon), the sole heir of the Qianming Group, is heartbroken. Born with ambition, he began to become evil and tried to dominate the world. In this time and space full of cruel doomsday world, April embarked on a thrilling journey and witnessed 5-8's confrontation with Qianming Group in the dilapidated doomsday world.