As a mare of logic and science, Twilight had never really entertained the idea of what could have been. She never worried about how things might have turned out. When she awakens in a dark, dystopian Equestria where ponies live in fear of their oppressors, however, she begins assaulting herself with questions. How did she get here? Why was she here? And, most importantly, can she get home in one piece?

There is a darkness looming, and Twilight Sparkle must find a way to bring it down before it destroys her and all she thought she loved.