After Twilight Sparkle tells the Princesses of Equestria an alternate universe where everything is the opposite, Celestia and Luna are curious and decide to visit this alternate universe.
Twilight Sparkle feels sad and betrayed by her friends, Spike, brother and mentor after they have ignored the warnings that Cadence was evil. Nightmare, feel these negative feelings in the unicorn and see an opportunity.
Nightmare Moon and Nightmare Rarity return to Earth. Nightmare Moon aims to cause eternal night and Nightmare Rarity as well, but she also intends to try again to conquer Nightmare Moon. Will she succeed in winning Nightmare Moon's heart this time?
Rainbow Dash was once just an ordinary teenage girl going to Canterlot High, but then, one day, she got bitten by a mutated spider and woke up with superpowers beyond her wildest dreams. But what will she do with them? (Flutterdash pairing)
Why did the changeling army choose to invade Canterlot during Princess Cadence and Shining Armor’s wedding? The answer can be found in a chance meeting between Queen Chrysalis and Nightmare Moon, back at the Summer Sun Celebration …
Sunset Shimmer returns to Equestria only to find Twilight Sparkle battling a strange pony named Starlight Glimmer. Unbeknownst to Sunset, Starlight has altered the past, forcing Sunset to deal with reigniting her friendships all over again.
Betrayed by those he once trusted, Shining Dantes is sentenced to life in prison for a crime he didn't commit. But he escapes, and discovers treasure beyond imagining. And now he will use it to exact his revenge. For he is The Count of Monte Cristo.
The Black Company claims to not remember Nightmare Moon, but they fly her banner under alien skies far from Equestria. And the stars are moving slowly towards their prophesied alignment...
Who are the Shadowbolts? Are they just illusions, or are they ponies? How did they meet, and just what were they doing while their Mistress was defeated?
Celestia is unable to stop the two evil royal sisters, and so they continue their battle. However, Daybreaker is stronger than Nightmare Moon, so the Evil Princess of the Night finds a way to gain more power, and an intense battle ensues...
Princess Luna's sister returns after 1000 years on the moon and Twilight sparkle will do everything in her power to stop her and defend her country and her mother.
Luna feels sorrow, pain, deapir, and is lonely. She feels fear and pain, and slowly watch as this eventually turns her into a Nightmare Version of herself. This is the stroy of the transformation and change of Luna into Nightmare Moon.
Tiffany "Twilight" Sparkle always thought of friends as a waste of time, at least until she was forced to team up with five strangers in order to stop Nightmare Moon.