Sonic and company are in Equestria. Nopony there knows exactly how they got there, and they themselves don't remember, either.

Follow them as they experience this new world from their own unique perspectives, one character at a time (a la "Sonic Adventure 1").

Takes place just a few days after Season 4's "Filli Vanilli".

Note: Some parts will repeat across chapters when multiple characters experience the same thing, but the descriptions will be different, and I will do my best to add extra content/context depending on whose chapter it is.