Axel Martin, a unitologist out to find the marker, Azaliah Clarke, Isaac's great great granddaughter has kept the markers hidden. She has kept him at bay so far but she was bound to fail eventually. Now Sunset Shimmer has become worried about what has happened and runs off to warn Princess Twilight, now Twilight has to find Azaliah, team up with her and keep her mind in check. Easier said than done when you're disliked by the person your trying to help.