The TARDIS is dead. The Tenth Doctor and Donna Noble are stranded in a land of myth and a time of magic. However, they befriend a local boy, Merlin, and what starts as a chance meeting soon turns into a race against time. With Prince Arthur's life in mortal danger and the city under attack from strange, unearthly creatures, Merlin and the Doctor must join forces to save Camelot.

Arthur's been enchanted and only his true love's kiss can save him. But his true love might not be who we think it is. A Sweet Drams (s2ep10) AU. Magic reveal. Merthur and Arthur/Guinevere.