After a late-night triad dispute leads to the death of an innocent civilian, PTU officers take action by investigating triad activities in the area.
任達華
as Sgt Lee Wing Sam
邵美琪
as Sgt May Cheung Pui Yee
林雪
as Sarge
彭敬慈
as Crack
曾国祥
as Fai
Wong Man-Shing
as Lok
Wu Li
as Cheung Man Wai
洪智傑
as PC Chung
Wong Chi-On
as Sam's team member
陸文衛
as Sam's team member
林仲岐
as Sam's team member
Jason Chang
as May's team member
