In the days of King Arthur's Camelot, a renegade knight Ruber plots to usurp the throne by turning his henchmen into formidable monsters, forcing the widow of a Round Table knight he killed to use her privileged access to the King's castle and, most importantly, stealing King Arthur's symbol of power, the magical sword, Excalibur. When she kidnapped the widow, her young rambunctious daughter, Kayley, who dreams the seemingly impossible dream of becoming a Knight, escapes to both warn the King and try to recover Excalibur. Along the way, she meets up with a young blind hermit, a goofy two headed dragon and a mysterious silver winged falcon and together, they endeavor to find the sword to save the kingdom.