Skyrim's greatest dysfunctional family find themselves in Equestria, and, to no ones surprise, end up causing the local populace a lot of grief.

A girl dressed like Princess Celestia finds herself in Equestria. Unfortunately, she loses her marbles and decides world domination is better than the Magic of Friendship. Things generally get worse for everypony after that.

The citizens of Ponyville find themselves caught up in the machinations of four displaced beings that are not at all human, or at least, they aren't any longer.