Description：Ji Jie (played by Wang Qian) and other six group members heard 15 gunshots while escorting 412 serious criminals. After in-depth investigation, they found that the mysterious gunshots were related to a real estate project worth hundreds of millions, "Jinxiu Di". When Ji Jie was about to start a thorough investigation of the case, Tong Lin (played by Xing Minshan) was appointed as the leader of the sixth group to directly command the case. Unexpectedly, one wave of troubles arose after another. Zhao Peng, one of the shareholders of Jinxiu Di, was kidnapped, and another key figure Gao Xiangyu committed suicide by jumping off a building... The case became more and more confusing, and all the clues revolved around a mysterious woman named Chen Xue (played by Zhu Lin). Tong Lin, who had undercover experience, also had a complicated relationship with Chen Xue... In addition to the big case of Jinxiu Di, the six groups also encountered many cases, big or small. They can sort out this series of complicated cases and dig out the real behind-the-scenes.