Description: The details of undercover police officers are deleted from a police database and a senior officer is left struggling to know who are the undercover officers and who are the criminals.
卧底阿钉（佘诗曼 饰）收到了一条神秘短信，追溯到神秘人郭铭的犯罪集团，其手下两名重臣少爷（古天乐 饰）和阿蓝（张家辉 饰）很可能是之前警队失联的卧底。而在捣灭犯罪集团的过程中，其中一人暴露身份也使这对情同手足的好兄弟陷入信任和生命危机。而卧底联络人Q Sir（吴镇宇 饰）和卧底阿钉也面多重危难。在迷雾中，一场激战蓄势待发……
Language: Cantonese
Country: Hong Kong
Times: 108 Minutes
Release Date: 11 August 2016
Director: Jazz Boon
Cast: Nick Cheung, Louis Koo, Francis Ng, Charmaine Sheh,Benz Hui, Stefan Wong
