A few years after the death of Regal Crescent, a dark presence emerges from the shadows. Light Sparkle wishes to join the Crystal Knight but her father refuses to let her. With Sombra as Charming Thunder's guide, he will soon become king and confront the forces of evil that have risen.

Note: The reason why Light Sparkle looks like Twilight is because of the last episode that described her to have the same mane as her but red.