The TARDIS malfunctions and lands on an island.

I was walking home one day, when I was transported to Equestria. I found all the characters I love from the show. They did't know me though.

The Changelings come back. Luna is saved by a mysterious organization called LUNA.

Derpy whooves joins the wonder bolts after performing a sonic rain boom

Luna stumbles apon the TARDIS while taking a walk in the garden.