Mr. Lee, the mysterious boss of the largest drug trafficking organization in South Korea, is arrogant. He recently eliminated useless cadres through a bombing case, and even the backbone who escaped by chance was killed in the police station. The head of the anti-drug team, Zhao Yuanhao (played by Zhao Zhenxiong), rescued Xu Yongle (played by Liu Junyeol), who was working as a liaison in the organization, from the bombing scene. After interrogation, it was learned that Xu was originally responsible for contacting Chen Helin (played by Kim Joo Hyuk), a drug lord entrenched in Jilin, China, and was mistakenly involved in the organization's cleansing because he returned to China early. Team leader Zhao took advantage of the situation and decided to play a double act between Mr. Lee and Chen Helin to uproot the drug trafficking organization. This process is full of dangers and crises, and the real Mr. Lee has not yet shown his true intentions... This film is a remake of the original work of the same name by Johnnie To.