Three years ago, Xu Lang accidentally injured someone and was imprisoned to protect his mother.
After being released from prison three years later, his mother died of illness, his father disappeared, and his family was lost.
Zhao Tianhu, the boss of the West District, gave him a bar and asked him to be a pawn.
Policewoman Lin Lan asked him to be an informant and cooperate with him in cracking down on crime.
On the surface, he is an upstart, but secretly, he is a police undercover.
A double-sided life, walking on the edge of a knife.
Find out the truth about the murder of his parents and bring down the underground evil in Cangcheng.
This time, he will trample the entire Cangcheng city under his feet
