Wu Xie, Fatty Wang, Zhang Qiling, and Xie Yuchen are partnering up with the national authority to investigate the grave-robbing syndicate led by Hendry Cox. At the Empyrean Palace on top of the Changbai Mountain, they unravel Hendry Cox's been planning for years to steal the national treasure for his own gain. Wu Xie and the gang manage to put the syndicate's grave-robbing operation to an end.

"Legend of Zang Hai" follows the son of Imperial Astronomer Kuai Duo. Consumed by vengeance, he spends a decade honing his skills. Assuming the name Zang Hai, he ventures into the capital to uncover the truth, avenge his family, and restore justice.

Wu Xie and Wang Pangzi set off on an adventure to the snowy mountains to uncover the mystery behind Zhang Qiling's origins. Along the way, they face off against the clever Zhang siblings, Zhang Haixing and Zhang Haike, and get caught up in a conspiracy unlike anything they've ever encountered.