Six month after Twilight's adventure through the mirror world, she and her friends celebrates her birthday. When suddenly a creature from 1000 years ago comes back after Celestia banished it into space. To get revenge at Celestia and the mane six, it does the most horrific thing. It steals Twilight's wings and turns her back to a unicorn. Will the mane six be able to stop it or is it more than meets the eye?