What would you do if you discovered the hard way that some insane doppleganger of you has ruined your life, terrorized your hometown, and dragged your once-sterling reputation into the mud? One would imagine that you would have a few choice words for your deviant duplicate. Sunset Shimmer certainly does. Intent on saving her budding political career from being devastated before it even has a chance to get off the ground, she leaves her studies in the university city of Houghington to go sort things out. Unfortunately for her sullen, sarcastic bookworm roommate Twilight Sparkle, Sunset is taking her too.