When Jedi Padawan Twilight Sparkle begins receiving visions of Darth Nightmare's return, it seems that nopony believes her. However, when she's sent to a backwater world to oversee the upcoming festival, her visions come true far sooner than she had expected. Now she must contend with a great and terrible Sith alicorn who has her master captive, as well as a small group of ponies who can't seem to leave her alone...