The Dragon Pearl(2021)

Professor Xu and Liu Tong are ordered to protect the tomb. While spying on the grave robber Lu Daocheng, they accidentally befriend Su Yuehong, Lu's daughter-in-law. At the same time, they discover traces of Japanese tomb robbers. Faced with the two forces, Liu Tong and Professor Xu struggle to protect the tomb with the help of Su Yuehong.