Doctor Who (1963): England, the near future. As the Doctor receives a parcel from South America, Mike Yates asks Sarah to visit the meditation centre where he's been recuperating. But what is the true significance of the blue crystal of Metebelis Three? And is this adventure one too many for the Doctor?

Starring:

Elisabeth Sladen, Frazer Hines, Jacqueline Hill, John Levene, John Scott Martin, Jon Pertwee, Katy Manning, Nicholas Courtney, Pat Gorman, Patrick Troughton, Peter Davison, Tom Baker, William Hartnell, William Russell

Genre:

Adventure, Drama, Sci-Fi