Shi Jian, a genius martial artist who has been practicing hard in the mountains with a reclusive martial artist since he was a child, has developed a tyrannical fighting power far beyond that of ordinary people. After coming down from the mountain, the undercurrents of various forces in the Republic of China were surging. He concealed his identity as a martial artist and hid in the city. With his extraordinary physical skills and keen observation, he dealt with various espionage forces and uncovered many conspiracies against the local people. There was no heroine accompanying him throughout the process, and he used pure martial arts to tear through the secrets of the spy war.
