Exiled to Earth and now working for UNIT as their scientific advisor, the Doctor is summoned to an underground research centre at Wenley Moor to investigate a series of inexplicable power losses. Initially suspecting sabotage, he soon discovers the nearby cave system conceal a colony of an ancient reptilian race called the Silurians. Awakening from a hibernation which has lasted million of years, they are now intent on reclaiming the Earth from mankind.
Commentary by Caroline John (Liz), Nicholas Courtney )The Brigadier, Peter Miles (Lawrence), Geoffrey Palmer (Masters), Timothy Combe (Director), Barry Letts (Producer) and Terrance Dicks (Script Editor).
Note: the commentaries are on the 2nd audio track of the episodes
What Lies Beneath
A documentary showing how the socio-political climate of the late 1960s helped shape this Doctor Who story. Featuring director Timothy Combe, producer Barry Letts, script-editor Terrance Dicks, actors Caroline John, Nicholas Courtney and Peter Miles, new series writer Paul Cornell and former MP Roy Hattersly. Narrated by Geoffrey Palmer
The story's producer, director and designer discuss the problems of shooting underground caves and cave-dwelling monsters in the confines of a TV studio. Featuring Barry Letts, Timothy Combe, Barry Newberry, Terrance Dicks, Caroline John, Nicholas Courtney and Peter Miles.
Now and Then
Comparing and contrasting locations used in the story during production with how they appear today. Narrated by Geoffrey Palmer.
A look at an extraordinary era of musical experimentation within Doctor Who, with special emphasis on the musical scores for Doctor Who and the Silurians and The Sea Devils. Featuring producer Barry Letts, composer Mark Ayres and director Timothy Combe, Christopher Barry and Michael Briant, with an archive appearance from Radiophonic composer Malcolm Clarke.
Colour Silurian Overlay
A fascinating featurette explaining how the story was restored to its present glory using a combination of black and white film prints, off-air American Betamax video recording and modern video-processing technology. Narrated by IT Williams.
A selection of rare and previously unpublished photographs from the recording of this story
Colour restored trailer for Doctor Who - The Ambassadors of Death (note: this trailer is also on the end of episode 7 of Doctor Who and the Silurians)