In "The Maze of Black and White", Gao Tian is the mole, and was eventually tricked out by Dahua.

Dahua is a capable member of the Hongxing Society and is particularly loyal to the society. There is a famous saying: "If you complete what the club asks you to do, it will be right, and if you fail to complete it, it will be wrong." He attaches great importance to friendship and protects his brothers. Together with Achun and other brothers, they have experienced incidents such as club turmoil, betrayal by moles, and police sieges, but they have never changed their trust and protection for their brothers.

Gao Tian is Dahua’s subordinate. He has been following Dahua for four years. He is usually taciturn, but during gang fights, his movements are crisp and sharp, and his moves are fierce, winning Dahua's trust. But his true identity was a police undercover agent, and he was eventually tricked out by Dahua.

Extended information:

Plot summary

Gambler Da Hua (played by Simon Yam) and his subordinate Gao Tian (played by Wu Yunlong) were beaten by the gang leader to whom they belonged. (played by Lin Xue) is dispatched to hunt down Luo Ba (played by Ye Xiangming), the only son of gang leader Jiu Ge (played by Li Zixiong).

Jibao asked Dahua to organize his own troops to carry out this very difficult task, so Dahua reconvened his most trusted brothers Achun (Jordan Chan), Gao Tian, ??Char Siu (Zhang Zhaohui) ), Superman (played by Liang Liewei) and his daughter (played by Qiu Yinong) returned to the world together.

Unexpectedly, during the mission, every time he aimed at the target and attacked, the opponent could always escape first and set up a dragnet to lure you into the trap. Dahua began to suspect that there was a mole in the other team. At this time, the police also intervened, and it seemed that another police undercover was also cooperating with the team. The team is in panic and everyone is suspicious of each other. Dahua gradually understood that the fatwa was just a cover, and someone behind the scenes seemed to be using them to plan a bigger conspiracy.