Toby Cooper had hoped to spend the school camp bush walking, canoeing and avoiding the school bully. That was until he stumbles upon an old man who'd been sleeping in a cave for over a thousand years. That man is Merlin. When Toby discovers that not only is he descended from King Arthur but is destined to inherit Excalibur and fulfil an ancient prophecy things become a bit more complicated. With the forces of darkness rising Toby finds that the school bully is the least of his worries.