During a mission in the Badlands, the starship Lightbringer is brought into a matter of greater concern by the Imperial starship I.S.S. Discovery. Brought into an alternate version of their universe, Littlepip and her friends head down to the planet to investigate what is happening and fix the issue before it gets out of hoof. Unbeknownst to the Stable Dweller and her friends, however, they will attract the attention of an old foe and face the greatest enemy they've ever encountered: Themselves.