In the alternate timeline where Sombra was not stopped, a human finds himself suddenly in Sombra's body... just after the dread tyrant has conquered Equestria.
A tired interdimensional traveler in the form of an adorable little filly finds a place of respite in the magical land of Equestria. And as boring as it is, boredom is maybe exactly what she needs. After all, nothing ever happens in Ponyville, right?
A particularly stubborn human is lost in Equestria and is trying his damnedest to find a way out, while surviving the surprisingly difficult rigours of life in a land filled with cute talking animals. Hilarity ensues.
Our favorite boy genius builds a time machine in order to visit the past and disprove the existence of Nightmare Moon. Predictably, he bit off more than he could chew.
Rainbow Dash finds a maimed, unconscious young colt on the edge of Ponyville and rushes him to the hospital, but nopony knows who he is and something about him seems off...
Flurry Heart is a grown mare (16 years old) now, MOM! Her parents just don't get it. At least Uncle Anon is here to listen to her... for better or for worse.