Continuing the story thus far: After Sunset Shimmer and the others saved Equestria High from the wrath of the Sirens. Twilight Sparkle (the one from this universe, not the one from the realm of Equestria) wished to know where it was coming from and why. Now that Sunset Shimmer is friends with everyone at Canterlot High, she just wishes to know why she and her friends "Pony Up" at certain times.
But things are about to take a sour turn once again, for not only is Canterlot High prepping to go up against Crystal Prep for the Friendship Games, but the Twilight from this universe is also from Crystal Prep. Will she pose as a threat to our heroins from Canterlot High? Can this Twilight learn about the Magic of Friendship?
If not, can Sunset Shimmer get in contact with Princess Twilight for help. But ultimately, if she can and she meets up with the other Twilight, will both universes explode due to disrupting the Space-Time Continuum? Only one way to find out, so watch and enjoy!