Upon discovering a lost book about the further research done on the Elements of Harmony, Twilight Sparkle finds out that everypony always thought there were only six Elements of Harmony. But they were all wrong. Twilight goes on a journey to support what information the book had given her, but she isn't sure where to start…she gathers her friends, and begins her journey, but when they reach the Crystal Empire, they turn up empty-hoofed, until they go to Canterlot and split up. Rarity and Twilight come across a blue box in an alley…the box seems to be alive.

Bigger…on the inside!

The box traps Rarity and Twilight inside, throwing them across the universe and into an inevitable adventure: Twilight is captured by statues, these same statues are infesting Canterlot, and it's up to Rarity to find this mysterious Doctor, and help him get Twilight back and to save their friends in Canterlot before it's too late for all of them. Will Twilight find the seventh element, or will it be too late?