Nightmare Moon beat her sister and now the night lasts forever. She couldn't be more than happy. When she finds out a fatherless foal, Nightmare Moon decides to adopt her.

After Celestia banished Nightmare Moon to the moon, the Elements put her daughter into a coma. She wakes up centuries later with little recollection to what happened. Everything goes down in the Summer Sun Celebration but will she be able to stop her mother’s madness?

When her 'brother's wedding day comes, she thinks of nothing but that it will be a drag. But when Twilight discovers that her mother is undercover, Twilight is happy, knowing that maybe the wedding won't be as bad as she expected.

Applejack couldn't help but notice that Twilight has been acting weird all the time. Will Twilight be able to keep up her cover or will everypony discover the truth before she and her mother can begin their plan to attack Canterlot?