Sunset finds herself without purpose as graduation reaches Canterlot High's most famous class. Uncertain about what she wants and unfulfilled, she agrees to try a change of perspective.
Convinced by Twilight, Sunset Shimmer finally decides to return with her to Equestria- and face the music from her former mentor. Of course, when faced with speaking to her old mentor behind closed doors, the two reconnect as so much more...
Sunset Shimmer desperately wants to move on with her life, to accept her new friends truly do love her for who she is, but she can't stop thinking about her past.
Princess Luna enlists Twilight Sparkle to help her in getting Sunset Shimmer to stay in Equestria so Princess Celestia and Sunset can reunite. The situation turns out to be much more complicated.
For years, Princess Celestia faced the fact of Sunset Shimmer without a mother, and Sunset without a family. Luna decides it's time for that to change.
Celestia doesn't seem well these days. Luna decides she needs to have a talk with her sister to find out what's been bothering her. The reason why will change Luna's world.