King Arthur, Britain's most legendary hero, is now an old drunkard who spends his days slouched on his throne. He owes his former glory to the magic sword Excalibur, which the wizard Merlin forged for him in order to slay the hordes of demons who came to invade the kingdom of Pendragon. That incredible weapon now collects dust--and suffers from a bad case of boredom.

Meanwhile, Arthur's daughter, Princess Ysabelle, is wondering how to flee the marriage her father has arranged with the vile Baron Cumber. Desperate for something different and better, Ysabelle and her father's sword join hands and set off on a quest to change their fates.

But although Ysabelle is brave, she's never ventured outside before--and the real world is much harsher than life within the palace walls. In order to survive and accomplish her quest, she must rely on Excalibur, as her father did before her. But Excalibur's intentions may not be as noble as they seem . . .