Much of Princess Celestia's past is a mystery and nopony truly knows all the details of her life during the thousand years that Nightmare Moon was banished. Mistakes were made, enemies were fought and most were lost to the times... But there is one mistake she made that continues to haunt her to this very day...

Now years later, her faithful student and her friends must help two heroes summoned from another world to vanquish this great evil before the world is plunged into darkness. The Shadow Games have returned...