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 43