When Arthur's (voiced by Pierce Brosnan) fabled sword, Excalibur, is stolen by Lord Ruber (Gary Oldman), plucky young Kayley sets out to retrieve it. She is aided in her quest by handsome blind servant Garrett (Cary Elwes) and a two-headed, Elvis-singing dragon, Devon (Eric Idle) and Cornwall (Don Rickles). Together they battle to save Camelot from the evil Ruber.