While researching information on the ley lines, Twilight Sparkle discovers an old book that contains the secrets of a lost and forgotten form of magic, Alchemy. But these secrets hold dark, dangerous consequences for the young unicorn.
After Twilight discovers a book that contains a spell that can take her to a whole new dimension and a potion that grants her new, mysterious powers, Twilight journeys by herself to the new dimension to discover more about these new powers.
A terrorist attack by a group of robed unicorns sparks tension between the different groups in Equestria, threatening an all out war. Can Twilight and her friends stop all of the chaos, or will they also be roped in to the fighting as well?