The night in Tianjin and Hong Kong was once again shrouded in haze. Cases of missing girls occurred frequently. The scene was so clean that no flaws were left. The Changfeng detachment was in trouble under the leadership of Zhou Xun. Guan Hongfeng, who was hiding in the dark, could not sit back and watch the crime spread. With his sharp criminal investigation intuition, he quietly entered the investigation. However, he accidentally discovered that the case was connected with the unsolved case many years ago, and the outline of a mysterious criminal organization gradually emerged.
In prison, Guan Hongyu did not give up. With his extraordinary adaptability, he collected sporadic clues about the organization from the inmates and passed them to his brother through special channels; in the police force, Zhou Shutong was no longer a novice back then. She carried key files to Guan Hongfeng under disciplinary pressure and became an important bridge between light and darkness. While Zhou Xun has to deal with the dual pressure of pressure from his superiors and breakthroughs in the case, he also has to be wary of the insiders who are ready to move within the police force, and is under attack from both sides.
As the investigation deepened, the shady story of the "Crescent" entertainment venue, the chain of drug dealing, and the secret sabotage of insiders followed one after another. Guan Hongfeng was in danger several times, and was even listed as a "clearance target" by the organization. In order to save the kidnapped Zhou Shutong and completely reveal the truth, Guan Hongyu took the risk of escaping from prison. The two brothers worked side by side again for the first time in a long time, teaming up with Zhou Xunliyingwai to launch the ultimate showdown against the mysterious organization leader "Black Shadow". When the sound of gunfire pierces the night sky of Tianjin and Hong Kong, the inner ghost is arrested, and the organization is destroyed, will the injustice of the Guan brothers usher in a dawn? This battle to pursue the murderer, spanning light and darkness, intertwined with love and justice, will eventually usher in the final judgment in the alternation of day and night.
