ordred and his evil mother Morgana have been imprisoned in another world for the last 1500 years while Merlin's magical powers keeps them at bay. Meanwhile, in the present, a scientist accidentally finds a gateway to the other world and is about to unleash Mordred into present-day 20th Century life. It's a battle between the forces of good and evil and magic and sorcery as Arthur is reawakened from his sleep and together with Merlin, tries to find a way to stop Mordred from re-entering our world.