After an argument with your mother, you run far from home and unknowingly pass into pony territory. You are quickly captured and set to be sold in Manehatten. Soon you are Adopted by a stallion, Filthy Rich, to his daughter Diamond Tiara. After she mistreats you, you hide inside a train and end up in a new pony town, you meet a new pony, Scootaloo, who's impressed by your running ability. So she takes you in as her human pet.