The Super Sparrow Bros are back! However, this time, there's a bonus, King Boo had thrown in his lock with Cutler Beckett and Dr. Eggman from Sonic the Hedgehog. Now Jack, Will, Norrington, Mario, Luigi, Sonic, Silver, Shadow, Knuckles and Tails must rescue Elizabeth, Angelica, Peach, Daisy, Amy, Rouge, Blaze, and Tikal from a growing enemy, and it's not no easy task.

When Bowser and Davy Jones form a somewhat shaky alliegance, Jack Sparrow, James Norrington, and Will Turner are called to Mushroomland to save Angelica, Elizabeth, Peach and Daisy from them with the help of Mario and Luigi.