Overview
Hong Kong detective Chan [Anthony Wong] travels to the mainland city of Quangxi in search of the killer of his partner years earlier. Along with his new partner Lily Yeung [Li Fei], a mainlander living and working in Hong Kong, they enlist help from Wendy Wu [Carrie Ng], chief of an elite all-female SDU.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 39 | 64 | |
 | 36 | 61 | |
 | 26 | 51 | |
 | 33 | 58 | |
 | 48 | 73 | |
 | - | - |