Tomb Guardians II: The Sea of Death (2018)

A diary was found in the coffin of his great-grandpa Jin Maocai when the professional treasure hunter Jin San moved his ancestral grave. The diary recorded that the authentic manuscript of Su Dongpo's famous poem was buried in a Japanese underground fortification in Mongolian during the Counter-Japanese War. Jin San formed a treasure-hunting team to carry out treasure hunting. In the process of treasure hunting, Jin San and others met two other groups of grave robbers. After a battle between the two groups, they finally reached an agreement to seek treasure together. However, they did not expect that accidents happened frequently during treasure hunting. They met drug traffickers, were obstructed by foreign terrorist organizations and other evil forces, and launched a fierce struggle for treasure protection.