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. Nick Cheung, Louis Koo, Francis Ng, Charmaine Sheh, Hui Siu-Hung, Li Guangjie, Zhang Huiwen Added on Disney 2022-11-03. Added on Netflix 2022-04-26. Youtube Trailer