The blind swordsman, skilled in martial arts, named Cheng Xiazi (Xie Miao), accidentally saves Zhang Xiaoyu (Yang Enyou), who has suffered from the destruction of his family. Under the persuasion of the orphan Xiaoyu, Cheng reluctantly keeps him by his side and teaches him skills. Xiaoyu also waits for the opportunity to seek revenge.

Li Hongqi, a righteous Northeast police officer, accidentally discovers the existence of local bullies involved in pornography. As the investigation deepens, a gang of local tyrants who control and oppress women with drugs emerges and openly provokes the police. Li Hongqi has decided to fight to the end, and is bound to eradicate this "pornography tumor".

Zhang Yao, whose family was destroyed by drug dealers, secretly cooperates with Anti-drug team leader An Du. The two join forces to ruthlessly eliminate the evil and vow to wipe out Mukun and Anpei, the top two figures of the criminal group.