Twilight Sparkle has just recieved a letter from Princess Celestia warning her of a dangerous pony making his way toward Ponyville. She must gather her friends and confront him before he does whatever it is he plans to do, but what is it? The Mane Six must discover the secrets of this mysterious warpony before he brings a terrible future to Ponyville and its citizens. However one of them isn't so sure that he's as bad as the Princess says he is. What is his story and why does his presence worry Princess Celestia?