Celestia, Luna and the Mane 5 arrive at the Dark Tree of Harmony above the Everfree Forest where they meet Omega Brony and Tirek. The two introduced their newest member, Twivine, who is levitating the Elements of Harmony around her. Princess Celestia and Princess Luna were unable to free Twilight from her dark spell. It is up to the Mane 5 to save her friend who is now an enemy, but they need to watch out for the plunder vines that will drain their magic if not careful.