| Widow Tong Suk-fan is saddled with hardship alone, struggling to bring up her two sons Chong Yau-ching and Chong Yau-kit. The brothers join the Intelligence Unit and the Operations Unit of Anti-Terrorist Force respectively, and both gain recognition from their superior Shum Chi-ngo, which is supposed to be a comfort to their mother. But unexpectedly, due to a mysterious piece of intelligence, their brotherhood turns to enmity... |
| Name | Character | Episodes |
|---|---|---|
| Kenny Wong Tak-Ban | Ko Wai | 25 |
| Yoyo Mung Ka-Wai | Yip Ting | 25 |
| Louise Lee Si-Kei | Tong Suk-fan | 25 |
| Ron Ng Cheuk-Hai | Alfred Chong Yau-kit | 25 |
| Chris Lai | Fu Wang-leung | 25 |