During the police's crackdown on drug lords, the anti-drug police secretly infiltrated the drug lords to launch anti-drug operations. When the first-generation drug lord died in a gunfight with the police, the second-generation drug lord named Dean (Eric Tsang) quietly rose. The drug lord Dean, eager to open up the situation, set his sights on the third-generation drugs. Therefore, he arranged his younger brother (played by Chen Long) to lurk beside the drug-making genius Brother Hua (played by Ray Lui) as an undercover. When Brother Hua, known as the genius drug master, produced super drugs with amazing purity, the game between the two major drug trafficking groups officially kicked off. The two forces of good and evil, the police, drug lords, and gangs will confront each other, which will set off a unique anti-drug war!