After Order 66 was issued and the Clone Wars ended, the Jedi Order became extinct. The rest of the members of the Jedi were being hunted down while going into hiding. Charming Thunder, one of the Jedi's best generals in the Grand Army of the Republic, returned to his home planet of Equis in order to hide from the evil Galactic Empire. After reuniting with his aunt; Princess Celestia, he learned the secrets of living longer like an alicorn. Years later, he met new friends and made new enemies.
(It has been so long since I wrote a story. Alternate timeline of Charming Thunder's life set between Revenge of the Sith and A New Hope.)