Letting yourself be vulnerable is hard. For some ponies, like Spitfire, you need another's tender, guiding hoof to show you that it's okay to have a moment of weakness. Even if you fall head-over-hooves along the way.
Filly Twilight writes an essay on what she thinks of the nobles on a scroll she finds in Celestia's room that turns out to be for a speech Celestia was about to read to all of Canterlot.
Apple Bloom wants to see her parents, the Cutie Mark Crusaders want their cutie marks, so they do the the only logical thing and try to raise the dead.
When Twilight learns of a strange new town which has suddenly appeared in Equestria, she decides that it warrants further investigation. So off she goes, dragging Starlight Glimmer along with her; a great opportunity for a friendship lesson.
Twilight and company rush to Canterlot when Luna informs them Celestia refuses to raise the sun or perform her royal duties. Panic ensues as the ponies fear that their Princess may be sick!
"Space travel is all we know. Some of us are engineers or pilots. Except for me. All I am is a common civilian along fro the ride......... Now there is some organism its aggressive...mean and its killing ponies." -Twilight Sparkle
Twilight Sparkle has made a number of homemade clones to act as her while out with her friends. If only she weren't so absolutely terrible at making clones.
In a desperate bid to get Twilight's crown, Sunset Shimmer threatens to destroy the portal between her world and Equestria. When Twilight refuses, Sunset Shimmer snaps, and brings the hammer down.
Princess Celestia was quite clearly overworked lately. Twilight just had to find a way to help. Unfortunately, the only answer she found was a bit odd.
Based on Cupcakes by Sgt. Sprinkles: In the aftermath that follows the tragedy at Sugarcube Corner, the Elements of Harmony are lost and broken. However, one night, Luna visits Twilight's dreams to inform her of a powerful resurrection spell.
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.
One crazy pegasus, one roboleg, a contingent of Steel Rangers, and an adventure of infinite detours. Put all that together and what do you get? A rip-roaring mosh pit wrecking its way across the Wasteland, leaving nothing but confusion in its wake.