Eragon Shadeslayer can't go back to Alagaesia because of the prophecy, so he lives in Equestria. To make new friends with adorable, and colorful ponies
An unknown event suddenly rips all of Ponyville out of its place in space and time and places the entire town and all it's inhabitants on a ranch in Colorado. As the ponies, and humans, adjust to this event, more strange events start happening.