It's another day in Ponyville. Birds sing, leaves sway, and Twilight tries a new spell. Oh, and she is in Fluttershy's body now, the spell kind of malfunctioned. Also Discord found out, that's another problem.

So now she has to find out how to reverse the spell, the spell that she doesn't know what she did to cast. Simple, right? No? Well this will be interesting.