Monster finds problems fitting in and getting used to her new world in Ponyville. To help adjust, she reaches out to Princess Luna who has many of the same problems now that she is recovering from being Nightmare Moon.
Embracing the power to share love rather than steal it, the changelings work to reinvent themselves and their kingdom while Thorax seeks to introduce a more peaceful hive to Equestria.
Rose Bloom is even more timid than her mother, and Fluttershy is worried. She decides to help Rose get over her fears by introducing her to somepony really scary - Flutterbat.
Shining is thrilled to learn that Princess Cadance is willing to do anything to keep him as the years advance and he begins to turn gray. He's far less enthusiastic about what it will cost him.
As an ancient alicorn trapped inside a library, Princess Twilight spent many a century dreaming of being rescued from her prison. Now, finding herself in an entirely new Equestria, she realizes she'd never planned for somepony to actually succeed...
Twilight changes Star Swirl's time spell to travel back to the past once more. She ends up in the Pre-Equestrian era and unwittingly saves two fillies in the process. Little did she know what teaching them magic can do for the fate of Equestria.
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.
An accident with the Mirror Portal ends up with Twilight stuck as a small pony in the Equestra Girls' world. Her friends can't get over how cute she is.
Atop Chrysalis's decimated hive, King Thorax confronts his former peers. When their discussions are interrupted by a confused and scared changeling nymph, Thorax demonstrates the power of sharing love between changelings.
A frantic Night Guard travels into the Everfree Forest to rescue his daughter lost eight years ago, only to find that she may be the one who needs to rescue him.
Myths and Birthrights side-story: Velvet Sparkle recounts her younger years in a nation north of Equestria and the events leading up to her becoming the mother of Shining Amour and Twilight Sparkle
Twilight is unable to control her powers during the entrance exam to the School for Talented Unicorns, and in order to reduce the damage caused by her power surges, Celestia shrinks her down until she would later learn how to control her powers.