Lü Zheng

Cui Tiejun, Xu Guozhu, and Pan Jianghai, known as the Trident of the city police come together to fight crime.

Tan Yan, a deputy chief in the Luteng Public Security Bureau, is assigned to lead the special police team but faces challenges working with experienced leader Liao Bufan. As their teamwork improves, Tan Yan plays a key role in a joint operation with the anti-drug team to complete their mission.

The masterminds behind the scenes attempted to unfreeze billions of assets, not hesitating to hire yakuza forces to launder money by extreme means. Behind everything lies a more intricate and complex criminal network and connections. In the face of the temptation of rivals and difficulties, "Trident" can firmly believe, hand in hand to solve the case, to bring the criminals to justice?

An agent infiltrating the Nationalist Party in wartime Shanghai finds himself under threat.