"The Flying Guillotine" was produced by Peter Chan and directed by Andrew Lau, with filming locations in Shanxi, Beijing, Hangzhou and other places. During the reign of Emperor Yongzheng (played by Andrew Lau), the assassin organization, the Flying Guillotine, was founded. It was dedicated to executing the secret orders of the court and arresting dissidents. Its hidden weapons were dedicated to taking people's heads. Under the command of the commander Gong E (played by Wang Yu), the captain Leng (played by Ethan Ruan) led Chen Tai (played by Pubajia), Hu Tu (played by Gao Tian), Mu Sen (played by Li Yuchun), Shisan (played by Jing Boran), Bu Ka (played by Zhou Yiwei) and others to cooperate tacitly and never fail. At the border, Tianlang (played by Huang Xiaoming) established the Shepherd Gang and conspired against the Qing Dynasty many times. Its momentum grew day by day and won the hearts of the people. Emperor Qianlong (played by Wen Zhang) ordered the Flying Guillotine to capture and kill him. The crowd successfully captured Tianlang, but encountered an ambush by the Shepherd Gang on the way to the execution ground. At the critical moment, Mu Sen was held hostage by Tianlang, and the Flying Guillotine also captured Tianlang's subordinate Bai Lan (played by Li Meng). Tian Lang, who has successfully escaped, is fleeing to his base in Wuguan Town. Gong E orders everyone to take Tian Lang's head. On the other hand, Qianlong has long hoped to replace cold weapons with firearms such as muskets and cannons, and appoints the imperial spy Hai Du (played by Shawn Yue) to accompany him all the way, taking the opportunity to kill the blood-dripping child. This time, both sides are in a precarious situation...