FUN (Wong Hei) has been an auxiliary policeman for years. By mistake, he issued a ticket to his full-time supervisor and was being fired. Fortunately, he gets a job in a food company of being a supervisor with the help of his friend WAI (Wu Qi Li, Elaine). His new staff admires him very much. On the other hand, there is a new comer SHUN (Lui Chung Yin, Jackie) in the auxiliary police force and works together with FUN. He is cool but very hardworking. Once, SHUN shot FUN’s friend accidentally, which leads conflict between them. Meanwhile, FUN realizes that the new manager of the food company is SHUN. Though both of them have a lot of argument either during full-time or part-time job, they become close friends……