The superhero Ben Tennyson was chilling at his home until he was called to Plumber HQ by his grandfather Max. When he gets there, he is told that Aggregor and some other enemies of Tennyson's have broken out of the Null Void and vanished into another dimension. Ben is instructed to go into the new world and find them. When he gets to this new dimension, he finds himself in a new form....a Pony!

In this new form, he will search the land of Equestria to find his foes. And with the help of Twilight Sparkle and her friends, what could possibly go wrong?