A mystical power takes over Equestria and begins to cause problems, but what really worries Twilight Sparkle and gang is the fact that Princess Luna disappears, Celestia stops replying to letters, and an ancient mystery alicorn suddenly appears.

Majestic Jewel and Aqua Treasure can't get along, at all. So to protect the big city of Manehatten, and try to work out their problems, they are sent to Ponyville to start new lives, and hopefully become friends.