In 50 BC, the Dragon Emperor (Jet Li) brutally murdered the people, and the people were miserable. The witch Zijuan (Yang Ziqiong) fights for her life, and uses spells to turn the tyrant and his soldiers into terracotta warriors and horses, and seal them in the catacombs. It's 1946 in a blink of an eye. Adventurer Rick (brendan fraser) and his wife Evelyn (maria bello) now live in seclusion in Oxfordshire, England. The quiet life is a bit boring, so when they got the "last task" provided by the Foreign Affairs Office-returning a precious cultural relic stolen from the Shanghai Museum to its original owner, they set off happily. At this point, they have no idea how dangerous this road will be! In Shanghai, Evelyn's brother Jonathan (John Hannah) runs an Egyptian-themed bar. Rick and Evelyn's son Alex (luke ford) has also grown up. He is adventurous and inherited his father's footsteps from his parents. He became an archaeological explorer and also came to China to conduct archaeological excavations in northern Central China. Unexpectedly, Alex, who was full of energy, not only found the tomb of the Dragon Emperor hidden for thousands of years, but also accidentally started the organ of the tomb! The dragon emperor was finally awakened. Sleeping for many years, he not only has extraordinary power, but also prepares to arouse his invincible military forces to return to the world, which is bound to make the world fall into tyranny again! Alex made a big mistake and had to ask his father, mummy expert Rick for help. However, in addition to the evil Dragon Emperor, they will also face unimaginable obstacles-the grave keeper who kept the location of the imperial tomb secret and did not hesitate to draw a sword against each other, and the ambitious warlord general Yang () who tried to win the world by relying on the Dragon Emperor. The soul-stirring ghost war is imminent. Can the O 'Connor family work together with Qi Xin to defeat the eternal conspiracy that threatens the world again?