This film tells the story of Mu Ling, a descendant of the Mu Palace, embarking on an adventure in search of his father.In order to realize the family's long-cherished wish, she went to the treasure island, but met her ex-boyfriend Hu Sha and the pirate Song Ming with a ulterior motive.On the island, they face many dangers, including the pursuit of sand pythons, the siege of insects, the rebellion of pirates, and the test of ancient institutions.Finally, they arrived at the small world inside the belly of the volcano and found the treasure ship 200 years ago.Here, Mu Ling and others discovered the treasure, the sand python and her missing father.In the interweaving of family affection, love, ambition and desire, they must defeat the sand python to achieve their redemption.Mu Ling reactivated the artillery firearms in ancient Ming Dynasty ships, set up deadly traps, and launched a final decisive battle with the sand python.