Zheng Zeshi, a policeman who plays the role of Mandarin Mouth and Fat Man in a Hong Kong-made comedy movie, caught a big fish and hurriedly put a tissue in his mouth.

Bao Zheng and the big mouth ring are a pair of lovely babies. Together, they became policemen and were determined to serve the citizens. Unfortunately, they often make jokes because of their mistakes. The background of the story is Hong Kong. At the beginning of the story, Bao Zheng and Dakouhuan are receiving special police training. They should rush into a room in the shortest time to rescue the hostages held by gangsters. The two men cooperated successfully and rushed into the house, but they fought, missed the gangster, but killed the hostage by mistake. The instructor wanted to transfer them back to the original police station, but they wanted to be special police officers and didn't want to be teased by the same people, so they asked for a second interview. Instructor's permission. Unexpectedly, in order to qualify, they got out of the cat and were taken out of the training camp ...