The TARDIS arrives on present day Earth where the Doctor and Ace investigates a distress signal, only to discover knights from another dimension led by the evil sorceress Morgaine and her son Mordred have arrived in our dimension to seek out Excalibur, the mythical sword of power of the legendary King Arthur, where The Doctor is mistaken for Merlin, and the Doctor believes Merlin may be his future incarnation. Reuniting with Brigadeer Lethbridge Stewart, The Doctor, Ace, a young Chinese woman named Shou Yuing, U.N.I.T officer Brigadeer Winifred Bambara and a knight named Ancelyn set out to stop Morganie and her knights and prevent her from unleashing the demonic Destroyer of the Worlds and prevent Morgaine and Mordered from destroying the world with a nuclear warhead, U.N.I.T is transporting across the countryside. Written by
Did You Know?
23 years earlier. Nicholas Courtney and Jean Marsh appeared together in the epic 1966 story "The Dalek Masterplan" starring William Hartnell as the 1st Doctor. Nicholas Courtney played Bret Vyon and Jean Marsh played Sara Kingdom. See more
You haven't won the game yet, Morgaine.
I could always defeat you at chess, Merlin.
Who said anything about chess? I've been playing poker. And I have an Ace up my sleeve...