As Princess Celestia sends Twilight off to her test of protecting the Crystal Empire, she stands tall with full faith and confidence that she will succeed. Princess Luna has faith in Twilight as well, but she still prefers to have a back up plan.
As Sassaflash goes to retrieve her cousin from the train station and begin a new adventure, she encounters another relative who is far less excited about their adventures than she is.
With Canterlot under threat and a Royal Wedding scheduled to take place, Princess Luna returns from her journeys across Equestria to aid her sister with the defense of the city.
After Discord manages to defeat Celesita's protégé and her friends in the palace gardens, both Princesses look to the Knight of the Restored Moon while the Elements of harmony rally around Twilight Sparkle.
Everypony knows the story of how Twilight Sparkle and her friends defeated Nightmare Moon and saved the world from an eternal night, but they were not the only ones to rise up in the face of evil.