A brainy private school student is transferred to a far less elite institution, where he must fend off classmates who settle scores with fistfights.

Various government departments of the Hong Kong Special Administrative Region have been criticised heavily by the public. The Commissioner welcomes the proposal of "Sunshine Cops" from public relations officer Geena to enhance the image of Hong Kong's finest. Both Lemon and Sammy have recently completed their Police Tactical Unit (PTU) training. They look like movie stars and are fit and ready to conquer the world. They are selected to represent PTU in the internal audition for "Sunshine Cops" and contest against elite from other units like Criminal Investigation Department and Task Force, etc. The competition is tough but they prevail.

A juvenile delinquent is sent to live with her grandmother after being paroled from the Girls' Penitentiary, only to find that the frail old woman could be her only hope for survival after getting mixed up in some seriously shady business. When Gucci (Isabel Chan) was tossed into lock-up, her father had already been dead for years. Gucci always thought that her mother would live forever, but upon getting out of prison she discovers that her mother, too, has passed away. Now Gucci's sole guardian is Wong Fei Hung (Helena Law), an old fashioned woman who isn't accustomed to change. At first aghast at the prospect of living with the crusty old woman, Gucci soon finds her life changed for the better thanks to grandma's wisdom and compassion. Later, when Gucci lands in trouble once again, grandma Wong Fei Hung leaps into action.