Project A is a Hong Kong film from 65438 to 0983, starring Jackie Chan, Yuan Biao and Sammo Hung. This film is Jackie Chan's first film to return to Hong Kong after his first foray into Hollywood. This film is one of Jackie Chan's masterpieces. 1987 Jackie Chan staged the sequel to Plan A again. ..

The story background of "Plan A" is that in the early 20th century, Ma Rulong, the petty officer of the Marine Police played by Jackie Chan, was one of the main forces to clean up pirates for the Marine Police. At the beginning of the story, the police (land police) and the marine police chief had an enemy in officialdom, which led to a fierce battle in a bar, thus launching a series of tense stories.