Facing starvation in an endless winter, the young filly Celestia attempts to raise the sun... and finds a wonder that her cynical mind had never conceived.
Celestia lands on Earth as a common Arabian mare. Without magic, speech, not knowing the language, she seeks her way home. First though, she needs to make some friends and restore her freedom.
After years among the three pony tribes the Two Sisters fight their first great foe by themselves: King Sombra, the tyrant King of the Crystal Empire. Nothing goes as planned, everything, and everypony are not as they seem.