A murder in the mirror world brings Sunset Shimmer back to Equestria, with her world's Twilight Sparkle in tow. While they track the killer, they struggle to reconcile the differences between them and their mirror counterparts.
Princess Twilight Sparkle feels the need to get away from her royal duties for awhile. Her counterpart wants to see Equestria for herself. This whole plot seems rather familiar...
Sunset Shimmer's close friends know about the magical world called "Equestria", but, soon, Twilight becomes unsatisfied with just having their questions answered. So, Sunset brings her camera in her next trip across the portal.
After the events of The Legend of The Everfree, Twilight has accepted Midnight Sparkle, and is no longer afraid of her taking over again. But now she’s confused more than ever, not at why Midnight does what she does, but at what and who she is.
Princess Twilight of Equestria missed the amount of messages that was sent from Sunset and rushes to Canterlot High. Once she was at the other side, she meets her friends and herself? The next conversation they have becomes interesting.
After returning from her latest trip to the human world, Twilight confronts something about herself that she isn't prepared to. (Friendship Games spoilers)