Celestia and Luna have many duties as the leaders of their realm, such as raising the sun and the moon; but there are other duties, while less pressing, that must also be fulfilled. When those duties require an unwilling betrothal, Luna flees the palace, afraid of summoning Nightmare Moon with the force of her rage. With the help of the commoner Donut Joe, she treks across the unforgiving landscape of Equestria, facing monsters and risking her life while forging a new friendship - but will her escape have been for nothing?