Xiao Ke is an orphan who survived the Yellow River floods and was adopted by the hero Lin Qingyuan and his wife. A month later, Lin Qingyuan was plotted. Lin Qingyuan's wife gave Xiao Ke a blessing to Taoist Master Qingxu of Wudang Mountain whom she met by chance, and then died in love. After arriving in Wudang, the withdrawn Xiao Ke was bullied by all his disciples and was often wrongly accused. The former head Xuan Jing, who lived in seclusion in the back mountain vegetable garden, taught Xiao Ke a lot when he was punished. Many years later, Xuan Jing was poisoned and assassinated, and Xiao Ke was regarded as the murderer. Before Xuan Jing died, he left a secret note, guiding Xiao Ke to obtain the sword Yuheng, the gatekeeper of Wudang, and then fled the world. At this time, the undercurrents in the world are turbulent. What is waiting for this young man?