After Sunset convinces them she's innocent, Fluttershy and Rainbow Dash become the pariahs of CHS alongside her, and Anon-a-Miss keeps posting into the new year.
Sunset Shimmer has fallen into a self-destructive spiral since her friends left her, and she attempts to end her life. While unconscious, she is confronted by Princess Luna. They have much to discuss, whether Sunset likes it or not.
Deciding to start her life somewhere from the chaos at CHS, Sunset encounters a boy who's blind & deaf as she now must protect him from danger and their past history.
After the photos from the slumber party at Rarity's have been posted on Anon-A-Miss blog, the Rainbooms go to Sunset's apartment to confront her, but when they arrived they didn't count on finding her sick in bed.
Anon-A-Miss thought they could easily manipulate their sisters into hating Sunset Shimmer. They're about to realize that they shouldn't have tried to mess with a professional.
No one at CHS believes that Sunset Shimmer isn't Anon-A-Miss. No one except her cousins that is. Now the Dazzlings must race against time itself to avert tragedy.
The fate of the world hangs in the balance and its potential savior is a mysterious figure known only as The Queen of Knives. But who is she? That's what Applejack has to find out.