Aviana, Holy City of the Eastern Mountains, and home to the Scepter of Harmony, is attacked by a powerful and dark wizard's army. Fearful of the Scepter falling into the wrong hands, the Duke orders a portal to a safe realm opened, so that they may escape and protect the artifact from the wizards clutches. There they find a ruin they may be able to fortify themselves in, but their appearance in the ruin has attracted the attention of Equestria, and the powerful mage they left behind has not given up finding his prize.