My response to EQD's Writer's Training Ground prompt #6: "Author, Equestria is in peril! Assemble a team of one Mane Cast member and their foil with attitude!"
It has been two and a half years since the events of Equestria Girls, and the portal to the human world is open again. Twilight receives an urgent letter from Princess Cadence asking her to come to the Crystal Empire immediately. Somepony has come through the portal, somepony who knows Twilight personally and is asking for her help to save Equestria.