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Inferno is a top-secret project that involves drilling down into the crust of the Earth to unleash a new energy source. However, the Doctor, along with his assistant Liz Shaw, is concerned that this drilling will have disastrous consequences for the whole world.His concerns are soon confirmed when the TARDIS throws him into a dangerous parallel universe, where Project Inferno is almost complete and the end of the world is near.. "
The Doctor is an observer and UNIT are providing security cover at an experimental drilling project designed to penetrate the Earth's crust and release a previously-untapped source of energy, named Stahlman's Gas after its discoverer. Professor Stahlman dismisses the concerns of the project's Executive Director Sir Keith Gold and exceeds all safety margins in order to expedite the work. Soon however the drill head starts to leak an oily green liquid that transforms those who touch it into vicious primeval creatures with a craving for heat. The Doctor is accidentally transported by the partially-repaired TARDIS control console into a parallel universe where England is ruled by a military dictatorship.
Cast and Crew
Starring Jon Pertwee, Caroline John
Producer Barry Letts
Directors Douglas Camfield, Barry Letts
Writers Don Houghton; Script Editor Terrance Dicks
- Audio Commentary
- Can You Hear the Earth Scream? Making Of
- Hadoke versus HAVOC
- Doctor Forever – Lost in the Dark Dimension
- The UNIT Family - Part One
- Visual Effects Promo Film
- Deleted Scene
- Pertwee Years Intro
- Photo Gallery
- PDF materials: Radio Times Listings, 1971 Doctor Who Annual
- Production Note Subtitles
- Digitally remastered picture and sound quality
7 25 min episodes
Original broadcast date: 9 May 1970"