Starring: Patrick Troughton, Colin Baker, Nicola Bryant

Directed by: Peter Moffatt

When the Doctor (Colin Baker) lands on a space station in the Third Zone, he suspects he's been there before and when he discovers his old assistant - Jamie - he's certain. Accompanied by Jamie and his present assistant Peri, the Doctor follows himself (Patrick Troughton) to 20th Century Seville. There he discovers his old enemeies, the Sontarans, about to dissect him in a genetic operation. But just why are they operating on the Doctor? And how will their findings aid their enslavement of the universe? Deadly questions to which the Doctors must find answers in order to escape their own excruciating death...

Extras include: Commentary by Colin Baker, Nicola Bryant, Frazer Hines, Jacqueline Pearce and director Peter Moffatt. Isolated music soundtrack. Production notes. 'A Fix With Sontarans' - short mini-episode from Jim'll Fix It (10 mins). Easter egg. 'Behind the Sofa - Robert Holmes & Doctor Who' (45 mins). Beneath the Lights (25 mins). 'Beneath the Sun' - location takes from Spain (35 mins). 'Adventures in Time and Spain' - interview with production manager Gary Downie (30 mins). 'Wavelength' - 1984 radio production following the cast and crew (29 mins). Photo gallery. Aspect Ratio: 4:3

The Doctor face to face with himself in 20th Century Seville, where he discovers that his old adversaries

Dr Who, Sci-Fi, Science Fiction, Patrick Troughton