Explosion! That's the thing that Music Clef remembers as she blacks out. When she wakes up,she's surrounded by people in a strange-looking universe. She can go back into Equestria,and see Ponyville,but a mysterious pony named Ghost Mare has been warning Ponyville by trying to demolish it,but with her Alicorn powers half-gone,will she ever really see Ponyville alive?