Beneath the tranquility of Binhai City, there is always an unknown undercurrent. Detective Li Wei never thought that a seemingly ordinary case would involve grievances that spanned many years - from the revenge mystery marked by the five-pointed star to the mysterious sapphires and navigational charts hidden in the stone room, every clue pointed to the mysterious "Scorpion" organization and its covetousness of the sunken treasure.
It turns out that behind the treasure is not only huge wealth, but also the shocking conspiracy of "Scorpion" to smuggle arms, and all of this is inextricably linked to the past cases of Li Wei's father and Zhou Xiaotong's parents. From old corridors filled with the smell of gas, to secret rooms that are shaking and about to collapse, to new crime scenes in abandoned factories, Li Wei and his partners are repeatedly in danger on the way to pursue the murderer: they must not only decipher the ancient secrets led by blood, fight to the death with "Scorpion" and his henchmen, but also face the departure and growth of people around him.
The battle between justice and crime never stops. When the fog of old cases gradually lifts, and when new crimes continue to breed, Li Wei always sticks to the faith in his heart. This is a pursuit of a murderer across time, a battle about justice, revenge and redemption, and his mission is to let light shine on this city forever.
