Leung Ho-Bong

Patlayıcılar konusunda uzmanlaşmış bir terörist, Hong Kong'un en çok kullanılan yeraltı tünelini adamlarıyla birlikte ele geçirir. İsteklerinin karşılanması için 48 saat müddet veren terörist, istekleri gerçekleşmezse rehineleri öldürüp tüneli havaya uçuracaktır. Artık bütün ülkenin ve rehinelerin kaderi bomba imha ekibinden Komiser Cheung'un elindedir.

Realising that he will be defeated in no time during a police showdown, a thug shoots himself to force the cops to cease fire and take him to the hospital. In the hospital, he claims human rights to refuse immediate treatment in order to buy time for his underlings to rescue him. The detective in charge sees through his scheme but decides to play along so as to capture his whole gang once and for all.

When the Hong Kong government enacts a ban on smoking cigarettes indoors, hard-core smokers are driven outside and a budding romance develops between two co-workers.

Two people cross paths every day but they hardly know each other. A Filipino domestic helper and her Chinese employer's son strike up an unlikely affair, one which forces them to come to terms with their sense of loss and alienation.

Although D.I.E had been dissolved and the officers returned to their previous departments, their odd habits continue to follow them, resulting in many troubles for the police force. The senior staff decide to bring the D.I.E back, this time headed by Lo Sir, Yue Sir's former supervisor. Yue Sir and Jing Jing have a baby boy and Jing jing returns to work after trying to be a housewife to no avail. Initially working with the homicide unit again, she is still always chasing Dai-Hau-Ying, and after several incidents is sent back to D.I.E. Ying seems to have become less evil than before, but Jing jing continues to attempt arrest, much to the chagrin of her supervisors.

Dr. Ko Lap-yan heads a team of senior psychiatrists and residents at the Yan Wo Hospital in Hong Kong. Most episodes revolve around the team diagnosing patients. With a specialty at diagnosing criminals, Ko also has close ties with the Serious Crime Unit of the Hong Kong Police Force, a unit headed by Senior Inspector Chung Kwon-ban. The second series sees Ko's resignation from the Yan Wo Hospital; he is later transferred to a new psychiatric department, the Forensics Psychiatry Department, of Bok On Hospital, where he formally diagnoses criminals.