The ancient empire of Rabida is a huge mechanical island floating in the air. Legend has it that it is no longer inhabited and contains huge wealth. Therefore, both the military and pirates are looking for this legendary flying island. Miner Parker met Rabida's heir Hida by chance that day, and the two hit it off at first sight. Because Hida has the flying stone, an important object for finding the Rabida Empire, the military and pirates are both chasing Hida. Parker fled with Hida, but they did not escape the hands of the military in the end. Hida was kidnapped by the army. In order to save his friend, Parker can only choose to cooperate with the pirates. Parker and the pirates successfully rescued Hida, and at the same time, they also discovered the military's evil plan. In order to prevent the implementation of the military's evil plan, they and the pirates embarked on a journey to find Rabida.