A high-octane action-adventure film is set on a fictional island located in the southern Indian Ocean. The notorious clandestine group known as "White Snake" has kidnapped Shinnosuke and Prince Sunnokeshi from the Buri Buri Kingdom. White Snake's goal is twofold; they plan on obtaining the kingdom's hidden treasure, located within the subterranean golden palace, while also recognizing a striking similarity between the prince and Shinnosuke. Shinnosuke's parents, Hiroshi and Misae, collaborate with Lulu, the head of the palace guard, to combat White Snake and liberate the captured pair.