Secret Agents (Connie Chan and Kenneth Tsang) go undercover at a disco club trying to prevent two scientists from falling into the hands of a nefarious gang led by The Lady (Mang Lei) and the mysterious X707.
| Actor | Role |
|---|---|
| MMang LeeThe Lady, Gigi | The Lady, Gigi |
 Connie Chan Po-ChuHoh Ling Chu | Hoh Ling Chu |
 Kenneth TsangSit Bong | Sit Bong |
 Shih KienChoi Yuen Wah | Choi Yuen Wah |
 Helena Law LanDing Lai | Ding Lai |
 Yung Yuk-YiCrazy Woman | Crazy Woman |
 Lam SiuBureau Chief/Guest | Bureau Chief/Guest |
 Sze-Ma Wah-LungChow Wah Dak | Chow Wah Dak |
 Lau Kar-leungDetective | Detective |
 Tong KaiDetective | Detective |