Agent Jon contemplates leaving the force until he learns his brother is working as a mercenary for a former colleague who betrayed their team.
Jay Chou
Jon
Nicholas Tse Ting-Fung
Man Yeung
Lin Peng
Rachel
Michelle Bai
Ice
Andy On Chi-Kit
Sean
Liu Kai-Chi
Man Tin
Carl Ng Ka-Lung
Ross
Sammy Hung Tin-Chiu
Mark
Philip Keung Ho-Man
Russell
Crystal Lee
Champ
Elaine Jin Yan-Ling
Jon's Mother
Deep Ng Ho-Hong
Man Yeung's Former Partner
