After the Z'Nai attack was brought to an end, the Royal Sisters decided to take a week's vacation from their royal duties. Celestia's vacation has ended and it is Luna's turn to relax and tour Equestria. In Manehatten, the Moon Princess ditches her entourage and drags Gold Heart and Soul Mage on an impromptu, schedule-free exploration of the theater district, leading to an encounter with the Great and Powerful Trixie.
Meanwhile, Princess Celestia finds that the night-time stars refuse to align properly and calls in Ashen Blaze, Gale, and Twilight Sparkle (with Rarity tagging along) to assist in researching the reason why.