For many years Princess Luna lived peacefully with herself. But one fateful day everything change. Nopony respected her nights and thus she became angry and jealous. This then caused her to transform into the wicked Nightmare Moon. In rebel to Nightmare Moon's return Princess Celestia challenges her younger sister...but losses... She was sent into a deep coma. The mane 6 try to stop her only to find the Elements of harmony to be ineffective despite their best attempts, they fail. It's either buckle up, or freeze...