Ah Bo spends all day with his father, a mini-bus driver. Since Bo’s father always receives tickets from the traffic wardens, Ah Bo has hatred towards all traffic wardens. Their neighbor, Tze Wai, thinks it is not good for Ah So to go with his father every day. She suggests that Ah So should go to a workshop designed for mentally disabled people. However, So's father turns down her proposal. While Ah So is accompanying his father to work, he meets a group of gangsters and he is beaten. At that time, Sun Ma Chai sees him and gives him a helping hand. From then on, Ah So has changed his perception towards the police. Ah Bo hopes to work as a traffic warden.