Ho Tung Man is a veteran cop, but still stays in a junior post as he has failed in several promotion exams. Loaded with family burden, he remains as a bachelor at the age of forty. Tung Man works hard in the hope that his brother Sun Man will become a university student. However, the outgOing Sun Man has chosen to be a cop for his career, which is objected by Tung Man. Knowing that Tung Man has d passion for Ah Oi Sun Man arranges a date for them and he makes use of the situation to ask Tung Man's approval for his joining the police force. Tung Man gives in. The hot-tempered Yeung Lung is transferred from CID to the uniformed section and has been assigned to be Tung Man's partner. To vent his frustration after the transfer, Yeung Lung hurts a suspect while on patrolling duties. Tung Man gets hurt when he tries to stop Yeung Lung. Because of his nervousness, Tung Man fails again in his promotion exam.