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...
Ron Ng Cheuk-Hai
Alfred Chong Yau-kit
Ruco Chan
Carson Chong Yau-ching
Aimee Chan
Jessica Chung Yat-ka
Yoyo Mung Ka-Wai
Yip Ting
Eddie Kwan Lai-Kit
Steven Shum Chi-ngo
Law Lok-Lam
Kiu Kim-hang
Vivien Yeo
Yeung Lok-man
Leanne Li
Luk Jyun Ting / "Beauty"
Louise Lee Si-Kei
Tong Suk-fan
Joseph Lee Kwok-Lun
Chung Lai Him
Kenny Wong Tak-Ban
Ko Wai
Chris Lai
Fu Wang-leung
Sam Chan
Ding Zhai Dong / Norman
Marine Lee Yee-Man
Eva
