Discord, after Tirek has gone back to his prison, has trouble dealing with his own inner demons. He knows what he did. He knows what he did was wrong. Unable to cope, he does the unthinkable.
He loses his mind.
Now, once things seem right again, Twilight is sent on a quest to discover what really happened to Discord, and moreso, how to save him from his worst enemy. With unexpected aid from unknown forces and a mystery to solve, will they be able to save the day in time? Or will all fall to Chaos?