The pirates gang are back! 500 years in the future, that is. Confused and scared, they take refuge in a mansion. There, they meet some strange people. They help the pirates go back to their time, while going through a series of misadventures.

Eggman's looking for treasure at sea, prompting Sonic and the gang to go looking as well. Add in a slightly lost Captain Jack Sparrow trying to commandeer their ship, and watch what happens.

Sonic and the gang go to the Bahamas and meet some interesting people on the way.