On the bank of the Tong River in Haizhou City，Five years ago“8·17”New clues to the big case have surfaced。Zhou Jin, an investigator from the Nancheng Public Security Bureau（Cai Wenjing Decoration）Because his brother Zhou Chuan was one of the two special police officers who unfortunately died in the case，Take the initiative to ask Ying to invest in the investigation。Jiang Hansheng, a professor of criminal psychology（Well, it's a bit of a joke Decoration）With the help of，The police locked up the mysterious man“Old scorpion”The criminal group led by the leader。At the same time，Execution“Operation Zangfeng”Jiang Cheng, an undercover police officer for five years（Qin Junjie Decoration），It has also touched the core of the enemy，It“Old scorpion”Just one step away。 In order to wipe out the criminal group，Zhou Jin、The sound of the river is cold、Jiang Cheng is a young man who grew up together in Gardenia Alley，Do your best in your respective positions，Fight wits and courage with criminals，With justice、Courage and wisdom triumph over evil。In this obstacle that spans time and mystery，The three are forced to get involved in using emotions as bargaining chips、A dangerous game that bets on people's hearts，The hidden pain buried in the heart and the intractable fate puzzle are gradually uncovered as the case progresses。