In a city where martial arts is prevalent, the fists and kicks of ordinary criminal policeman {Zhang Qiang} pale in comparison to criminals. During a mission to encircle and suppress martial arts criminals, he was seriously injured while protecting his teammates. When he was about to die, he met a mysterious old man and was handed down the ancient martial arts technique "Zhenyue Jue". Since then, Zhang Qiang has started a dual life of "police + training" - he is a dedicated criminal policeman during the day, and he practices martial arts late at night, making rapid progress in his physical body and inner strength. With his extraordinary strength, he solved the theft of long-lost cultural relics, eliminated the drug dens of hidden martial arts masters, dismantled the violent monopoly of street gangs, and gradually attacked the evil martial arts forces in the city. As the case deepened, Zhang Qiang discovered that behind these forces, there was actually a huge martial arts organization trying to control the city's underground order. He resolutely took up the responsibility of guardianship, swearing by the police badge and using martial arts as a blade, fighting his way through the battle between good and evil, and eventually became an urban tyrant who frightened criminals, guarding the tranquility of the city.
