In a world where ancient lore and old enemies alike have returned to the modern day in the explosion of the Crystal Heart, Equestria enters the age of adventure.
Princess Twilight is gone and magic fades, but friendship is the only power that can save the world. As the heroes of Equestria go on trial, will they find the path of hope, or lose their way to deception??
Having obliterated the Crystal Empire during Memories of the Stone, Sombra and his master forge an army of the underworld to resume their war against Equestria.
The power of the Crystal Heart has been shattered. The Princesses are scattered. The Elements are a trap wielded by a mad goddess. And the Cutie Mark Crusaders are making friends with an elemental spirit older than Celestia. We're doomed.