Phoenix Dawn, Princess Celestia's biggest mistake, is sick of living her whole life trapped in a cold tower hidden in Canterlot Castle, and is about to break free.

It's a race against time for Twilight and her friends to stop a radical young unicorn from destroying Equestria for the good of Dragon-kind, but they'll have to overcome a few "changes" in the meantime...

The mane six are forced to sail through sea pony infested waters