At the end of the Yin and Shang Dynasties, King Zhou secretly hid the "Jiuding Fragments" in seven suspicious tombs. It is said that collecting the fragments can open the "Xuanniao Underground Palace" and gain the power to reverse the fate of the country. Three thousand years later, a team gathered for their own purposes followed the bronze fragments left behind by their grandfather and entered into this life-and-death situation that spanned thousands of years.