Doctor Aaron's Adventures of My Little Pony: Equestria Girls

Twilight Sparkle, now Equestria's newest princess, travels to the Crystal Empire with her friends for her first princess summit. But the visit turns into a dire situation when Princess Celestia's former and bitter student, Sunset Shimmer, steals Twilight's crown. Now, with the help of some human look alikes of her friends Dr. Aaron and his crew, Twilight must journey to the EG universe if she's going get her crown back, but Sunset Shimmer and a few enemies of the TARDIS Team won't allow it.