In the final years of Emperor Taizong’s reign in the Tang dynasty, Crown Prince Li Chengqian is deposed. The crown princess gives birth to a son, whom Zhou Changfeng, the Eastern Palace’s finest swordsman, takes to Sanhe Town. When the boy grows up, Sanhe Town is razed in a bloodbath, and he flees to the Turks, where he becomes a guest adviser. Seeking revenge for his family, he is drawn into the conflict between the Turks and the Tang dynasty. To preserve peace throughout the realm and protect the Li dynasty, Xiao Han keeps a low profile and dances with powerful factions, setting in motion an epic legend.
