Li Yunlong, a drug strongman, is Zhang Qiang. "Anti-drug strongman" is a film directed by Zhang Qiang and starring Zhang Qiang, Jerry Lee and Li XiaoLu, which tells the story of a life-and-death struggle between a group of anti-drug policemen and drug dealers. Zhang Qiang is a famous director, actor and screenwriter. He has directed and participated in film and television works such as Storm, Latency and Peak, and won many awards and honors. Zhang Qiang not only served as the director, but also played the leading role of Li Yunlong, a brave, intelligent and just anti-drug policeman.