Charmaine Sheh is infiltrating the triads once again. Amongst the danger, she has to find the sixth mysterious undercover agent between the two notorious gang members, Louis Koo, who plays a mysterious drug dealer, and Nick Cheung, a tactical cold-blooded killer.
Line Walker was released in China on  August 11, 2016. It is directed by Jazz Boon and produced by Wong Jing.
Louis Koo is the new Andy Lau.
just appearing in every trash movies:/