A thousand years ago, following Nightmare Moon's defeat, Princess Celestia received a prophecy from the mysterious Chest of Harmony. As time progressed, Princess Celestia prepared for the kingdom of twilight rising and the end of Equestria.

And now the time has come.

A pony from the year 3656 has arrived with a dire warning and a grudge against Twilight. With time against them, the Mane 6 must travel across Equestria for the power to save the future. In order to do so, Twilight will finally realize her real destiny and her purpose as Princess Celestia's successor.