During the Northern Song Dynasty, the priceless Xuanwu Order was lost in the martial arts world. The four great martial arts families fought over it, and the Qinglong Sect and the Nangong family were even more hostile. Leng Xuanfeng set a trap in Wolong Valley and trapped Nangong Yu and his party in the dense forest. At the critical moment, Mo Xiaohao helped. At the same time, Princess Yongning, a descendant of the Zhou Dynasty, was captured by Xu Lingyun, the young master of the Qinglong Sect. Nangong Yu was furious and sent a pigeon to ask Master Jingyuan of Tianshan Snow Ridge to rescue her. Mo Xiaohao obeyed his master's orders, graduated and came out of the mountains, resolved the feuds and disputes of the four great families, and the martial arts world returned to its former tranquility.