1991 Hong Kong comedy film directed by Chan Ka-seng, starring Stephen Chow, Wu Meng-tat, Cheung Min, Cheung Yiu-yang, Wong Yi Shan, Wong Ping-yiu, and Yuen Qiong-dan.
Zhou Xingxing, a member of the Royal Hong Kong Police Flying Tigers, has outstanding personal ability and can successfully complete the hostage rescue mission during the exercise, but does not pay much attention to teamwork, causing unnecessary casualties among colleagues, so he cannot be promoted and hired. At this time, the police chief's gun was stolen from the campus, and arranged for Zhou Xingxing to enter the school as a student, tasked with investigating the situation and retrieving the pistol.
Zhou Xingxing could not bear the student life but for the sake of the task can only be resigned, repeatedly punished by the teachers to show insults, until the exam cheating was caught and ordered to call the parents, learned that his undercover partner Uncle Da was the guardian on his file, so Shunshi disguised as a father-son relationship and continued to lurk in the school. Seeing the beautiful and kind Teacher He fell in love at first sight, and under her intimate tutoring, Zhou Xingxing's homework improved by leaps and bounds. Because he subdued several underworld with his fists and feet at school, he was worshipped by his classmates to form the Star Gang and recognized him as the boss.
Zhou Xingxing and his classmates mingled together, and his feelings with Teacher He gradually deepened, his behavior on campus caused the displeasure of the underworld Dafei and Teacher He's police boyfriend, and sent people to beat Zhou Xingxing, take him to the police station and beat him severely with the convenience of his position, but he still did not reveal his undercover identity.
Uncle Da found a clue that the underworld was selling arms, the two went out late at night, found a car of illegally smuggled guns and the gun of the police chief, Zhou Xingxing rushed out to hand over the work, but found that Uncle Da did not have time to get on the car and was caught by the bad guys. In order to rescue his partner, Zhou Xingxing drove forward again, and after handing over the hostages, he lit the gasoline prepared in advance and blew up the car, Uncle Da stole the money from the transaction, and the two fled to the campus.
Chasing with the underworld in the campus maze, in order to save the hostages of the students controlled by the underworld, Zhou Xingxing commanded two classmates to cooperate skillfully and eliminate the minions, but he was still controlled by Dafei, and Zhou Xingxing abandoned his weapons and surrendered, fortunately, the director came to play a mighty wind to solve the battle, and promised Zhou Xingxing a promotion. Zhou Xingxing left the campus undercover to take up his post, and at the same time successfully embraced the beauty.