The two great dragon clans have united and summoned Celestia to their lair, demanding that Celestia give up her hold on the Sun and Moon. Celestia and her advisors must now decide between surrendering Celestia's greatest gift to Equestria and a war with some of the most powerful and ancient beings in existence.

Meanwhile, the changeling queen confronts Celestia in Canterlot Castle, pleading for the enfranchisement of her kin. Can Celestia trust the changelings, or is there too much to lose with an existential threat on the horizon?