When did Apostle Walker come out?

The movie "Walker" is directed by Man Weihong, produced by Wang Jing and Lok Yiling, and stars Louis Koo, Nick Cheung, Ng Chun-yu and Charmaine Sheh. The plot of the movie "Walker" tells the story of an undercover police force, interpreting the life and death battle between justice and evil, police and gangsters. It was released in mainland China on August 11, 2016.

Undercover Ah Ding received a mysterious text message, which was traced back to the criminal group of the mysterious man Guo Ming. His two important ministers, Young Master and Alan, are likely to be undercover agents who lost contact with the previous police force. In the process of destroying the criminal group, the identity of one of them was exposed, which also plunged the two brothers who were sympathetic to each other into a crisis of trust and life. The undercover contact person Q Sir and the undercover A Ding are also facing multiple dangers. In the fog, a fierce battle is brewing.

After being admitted to the police force, Ding Xiaojia (Charmaine Sheh), who was born at the bottom of Hong Kong society, returned to the mixed-race Portland Street as an undercover agent, collecting information for CID inspector Kang Daoxing (Ou Ruiwei). intelligence.

Unexpectedly, in the process of tracing the criminal facts of the triad leader You Dafu, Daoxing was accidentally killed. Before his death, in order to prevent the identities of his undercover officers from being exposed, he deleted the records of five undercover agents, including Xiaojia. After that, Daoxing's colleague, Chief Inspector Zhuo Kai (played by Miu Qiaowei) of the Criminal Intelligence Division, contacted Xiaojia, hoping that he could help find the other four undercovers and obtain criminal evidence of foreign criminal groups. ?