I remember there was a spy movie in the summer vacation.

Director? Starring Wen? Nick Cheung Louis Koo? Wu Zhenyu? Charmaine Sheh Xu Shaoxiong Li Guangjie Zhang Huiwen

About the plot? The film tells the story that undercover agent A Ding receives a mysterious short message and traces it to a mysterious criminal group. Two of his senior officials, Young Master and Allen, are probably undercover agents who lost contact with the police force before. In the process of smashing the criminal group, one of them exposed his identity, which also put the two brothers into a crisis of trust and life. At the same time, undercover liaison Q Sir and undercover agent A Ding are also facing multiple dangers, ready to launch a fierce battle in the fog.