The film mainly tells the story of Captain Qi Weibin (played by Xing Hanqing) and Deputy Team Chen Min (played by Li Mengmeng) who, upon receiving a drug trafficking report phone call, carry out a secret investigation of suspected targets with their team members, and work with drug lord Duan Kun (played by Gu Bin)）Duan Yu (played by Chu Qian) tells the anti drug story of a battle of wits and courage. Qi Weibin infiltrated the cargo compartment while the suspect was loading the vehicle, followed the vehicle to the drug production site, and took advantage of the terrain and teammate's cooperation to wait for the opportunity to move in one fell swoopRemove the drug factory. I thought I was cracking a crucial case, but who knows, it's all a conspiracy of black eating black Faced with the accidental serious injuries of the newly arrested drug lord Duan's brothers and teammates, he fell deeply into a deepSelf blame. Unexpectedly, accidents occurred frequently, and another long-term target, Yan Kang, who had been under control for a long time, suddenly died, thus interrupting the source of clues for the underground drug case in the coastal area. Through investigation, the anti drug team finally discovered the caseThe breakthrough point of the case, the new suspected target agent - loach. Who is a loach? Who is the real mastermind behind the coastal drug case?