The story is based on the anti-drug brigade's crackdown on drug crimes, and truly presents a bloody history of drug-fighting by ordinary anti-drug police. It mainly tells the story of a new type of drug with extremely high purity and great harm, red ice, which appeared in City A. In order to find out the drug production and transportation lines, Ma Zhiqiang (played by He Gang), the deputy captain of the city's anti-drug brigade, went deep into the group of drug addicts and experienced many rounds of dealings and melees with drug dealers. The anti-drug brigade was about to close the net, but he was trapped in a drug factory. The sealed tanks used for drug production were about to explode. Life and death were at stake...