Chan Wing Yan, a young police officer, has been sent undercover as a mole in the local mafia. Lau Kin Ming, a young mafia member, infiltrates the police force. Years later, their older counterparts, Chen Wing Yan and Inspector Lau Kin Ming, respectively, race against time to expose the mole within their midst.

Infernal Affairs III is a 2003 Hong Kong crime thriller film directed by Andrew Lau and Alan Mak. It is the third installment in the Infernal Affairs film series, and is both a sequel and a semi-prequel to the original film, as it intercuts events before and after the events in the original.

‘Extraordinary Mission’ is a new Chinese action thriller directed by Alan Mak (‘Infernal Affairs’) and Anthony Pun. The film revolves an undercover police officer who attempts to take down a drug trafficking syndicate from the inside. The cast includes Huang Xuan, Duan Yihong, Lang Yueting, Zu Feng, Xing Jia-Dong, and David Wang.