Xandra sends the Three Caballeros to the mythical kingdom of Camelot to train with the Knights of the Round Table and King Arthur! When they arrive, King Arthur is not as Xandra remembers. He's all talk and no action, using motivational speech as his new hero training tool. Motivational speeches won't help when the nieces unwittingly release a grail-eating dragon who goes on a rampage through the kingdom. The Caballeros have to rally Arthur and the knights of the round table to fight if they want to save Camelot. Meanwhile, the Cabana is guarded only by Ari and Humphrey. Sheldgoose manages to break in and emerge with the key to Felldrake's release from the staff – the amulets used to imprison him!