After Twilight's crazy creation of Theorization Manifestation, the rest of the mane 6 are looking out for new Manifestation spells to worry about. Turns out, Rainbow Dash has got one: Imagination Manifestation, the ability to bring fictional characters to life! This seems to go pretty great at first... just one problem. She can't put them back. Now her favorite characters are wreaking havoc across Ponyville. How will they stop the fictional characters and get them back in their stories?