After the miscarriage of their little brother, two unicorn foals run away into a forest near their home of Baltimare and discover a little filly, cold and alone. And while the family agrees to take care of her, they still know that this filly will have a hard time living with the ponies.
For she is a pragon, the last of her kind.

But the filly, afraid to show her face in public for fear of being discriminated against, yearns for a family that she never knew,
and discovers just how to show that she shouldn't be judged from just her appearance, when she saves all of Equestria with a power that no pony without a horn should have.