When Twilight's portals release Tirek into the human world and the humans get turned into ponies, they have to unite with their ponyselves to defeat him and save both world's.
Following the events that went down at CHS, the Rainbooms are struggling to change themselves for the better. And with the upcoming Friendship Games, it might give them ample opportunity to do so. But will it be enough?
In another dimension, Sunset Shimmer and the Rainbooms are now sending fear and panic to the students of CHS. But maybe three sisters may put an end to that...