With Princess Luna in exile, the boundaries of Equestria’s dream realm fell into disrepair, letting creatures from foreign dreamlands cross over and make themselves home in ponies’ dreams. Now, newly freed from Nightmare Moon, Princess Luna begins the task of ridding her domain of these squatters (thereby saving ponies from the nightmares they generate), starting with a particularly powerful one.

While Fluttershy recuperates from an attack, Twilight is beset by painful memories.

An exercise in non‐linear storytelling.