Sergeant Tong is wracked with guilt after he unwittingly kills a young girl whilst capuring a criminal named Cheung. When the girl's sister is later kidnapped in a ploy to get Cheung released, Sergeant Tong vows to find and rescue her before she comes to harm.
| Actor | Role |
|---|---|
 Nicholas Tse Ting-fungTong Fei | Tong Fei |
 Nick Cheung Ka-faiHung King | Hung King |
 Zhang JingchuAnn Gao | Ann Gao |
 Miao PuLi | Li |
 Liu Kai-chiSun | Sun |
 Sherman Chung Shu-ManChristy | Christy |
 Zhang ChengheThomas | Thomas |
 Lau KongChuen | Chuen |
 Derek Kwok Jing-hungMichael | Michael |
 Joe Cheung Tung-choJudge Lee | Judge Lee |
 Keung Ho-manCheung Yat Tung | Cheung Yat Tung |
| WWong Suet-YinLing | Ling |
| WWong Sum-YinYee | Yee |
 Accord Cheung Kwok-WaiFai | Fai |
 Eddie Chan Shu-ChiChi | Chi |
| TTommy Tse Kai-CheungTommy | Tommy |
| KKingman ChoKing Man | King Man |
| KKitty Ho Mei-YinTeacher | Teacher |
 June Lam Siu-HaBaking Instructor | Baking Instructor |
 Simon Yu Sai-TangProsecutor | Prosecutor |
| CChu Li-LiHooker | Hooker |
 Wu Zhan-PengCook | Cook |
 Wong Man-ShingDrug Trafficker | Drug Trafficker |
| LLai Siu-ManDrug Dealer | Drug Dealer |
| LLi KinDrug Dealer | Drug Dealer |
| LLee Kin-ShingDrug Dealer | Drug Dealer |
| LLee Hung-GeiDrug Dealer | Drug Dealer |
| AAu Wing-HinRookie | Rookie |
| RRingo Chan Ka-LeungRookie | Rookie |
| SSee LokRookie | Rookie |