Following the events of Rise of the Sea Dragon, Di Renjie gained the authority to manage Dali Temple and was granted the prestigious "Dragon Taming Mace" by the former emperor. Therefore, he became the biggest threat to Empress Wu Zetian's power. To eliminate this threat, Empress Wu assigns Yuchi Zhenjin to amass a group of sorcery masters, attempting to take the Mace from Detective Dee. Unknown to all, using the threat as a cover, an ancient sect strong in the practice of magic and sorcery has been in the background planning to exact revenge on the Tang Empire and destroy all those who come in their way