Disillusioned takes place a little over 100 years after the climactic Battle of Brandsvied at the end of Disenchanted.

The Battle of Brandsveid brought together every king and nobleman in the land in an epic struggle for the future of the Land of Dis, as the armies of the Six Kingdoms united against the monstrous army of Lord Brand. It was the event Vergil, a knight in the service of the Order of Avaress, had waited for his entire life. Unfortunately, he slept through it. In fact, thanks to an accident involving some magic powder, Vergil slept through the next 100 years as well, finally awakening in a world irrevocably changed by the outcome of that epic battle.

Finding himself suddenly an old man, Vergil must try to navigate this strange new world with only the help of his slightly dim but well-meaning servant, Handri. Despite the peaceful, civilized veneer of modern-day Dis, Vergil is convinced that a great evil still threatens the land, and he and Handri set about to uncover and vanquish it. But Vergil's prejudices and chivalric principles prove worse than useless in this strange new world, and he succeeds only in getting himself deeper and deeper in trouble while stirring up simmering animosities between goblins and humans. Can Vergil separate illusion from reality and uncover the true threat to Dis before it's too late?