MyLittlePegasisters
Trouble in Equestria. Sunset Shimmer must travel back to Equestria to give help to those who need it. The Twilight Sparkle of Canterlot High encourages her to return to her native lands, but she is afraid of her reception. Nevertheless, she returns out of love for her friend Twilight Sparkle.
Once in Equestria, Sunset discovers the problem they are facing and the stakes in helping them. Twilight and friends of Equestria treat her well, but Sunset is still unhappy to be back in Equestria, and feels as if she doesn't belong there. However, in an interesting turn of events, Sunset realizes she is more needed in Equestria than she thought.