A bomb maniac is on the loose and it's up to the Bomb Disposal Unit to crack the case. Complications arise when the mad bomber hooks up a pulse bomb to a pregnant woman.
| Actor | Role |
|---|---|
 Anthony Wong Chau-SangJohn Wu | John Wu |
 Lau Ching-WanPeter Chan | Peter Chan |
 Esther Kwan Wing-HoMary Kwan | Mary Kwan |
 Alexander Chan Mong-WahCrazy Bomber | Crazy Bomber |
 Joe Cheung Tung-ChoPolice Chief | Police Chief |
 Stephen Chang Gwong-ChinGambler | Gambler |
 Parkman Wong Pak-ManProud Father Policeman | Proud Father Policeman |
 Lung Tin-SangKen | Ken |
 Jamie Luk Kim-MingChow | Chow |
 Lam King-KongPoliceman | Policeman |
 Andy Lee Do-YuePoliceman | Policeman |
| NNelson Ngai Tak-LaiNot listed | Not listed |
 Jimmy Wong Wah-WoNg Sam-Kwai | Ng Sam-Kwai |
 Chang Kin-YungPoliceman | Policeman |