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Doctor Who
S7.E25
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IMDbPro

Inferno: Episode 7

  • Episode aired Jun 20, 1970
  • TV-PG
  • 25m
IMDb RATING
8.3/10
764
YOUR RATING
Caroline John and Jon Pertwee in Inferno: Episode 7 (1970)
AdventureDramaFamilySci-Fi

The Doctor is back in his own universe and must stop Stahlman before his earth suffers the same fate as the parallel one.The Doctor is back in his own universe and must stop Stahlman before his earth suffers the same fate as the parallel one.The Doctor is back in his own universe and must stop Stahlman before his earth suffers the same fate as the parallel one.

  • Directors
    • Douglas Camfield
    • Barry Letts
  • Writers
    • Don Houghton
    • Sydney Newman
    • Donald Wilson
  • Stars
    • Jon Pertwee
    • Caroline John
    • Nicholas Courtney
  • See production info at IMDbPro
  • IMDb RATING
    8.3/10
    764
    YOUR RATING
    • Directors
      • Douglas Camfield
      • Barry Letts
    • Writers
      • Don Houghton
      • Sydney Newman
      • Donald Wilson
    • Stars
      • Jon Pertwee
      • Caroline John
      • Nicholas Courtney
    • 5User reviews
    • 1Critic review
  • See production info at IMDbPro
  • See production info at IMDbPro
  • Photos5

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    Top cast15

    Edit
    Jon Pertwee
    Jon Pertwee
    • Doctor Who
    Caroline John
    Caroline John
    • Liz Shaw
    Nicholas Courtney
    Nicholas Courtney
    • Brigadier Lethbridge Stewart
    Olaf Pooley
    Olaf Pooley
    • Professor Stahlman
    Christopher Benjamin
    Christopher Benjamin
    • Sir Keith Gold
    Derek Newark
    Derek Newark
    • Greg Sutton
    Sheila Dunn
    • Petra Williams
    John Levene
    John Levene
    • Sergeant Benton
    Ian Fairbairn
    Ian Fairbairn
    • Bromley
    Alan Clements
    • Technician Phillips
    • (uncredited)
    Marcelle Elliott
    • Technician
    • (uncredited)
    Derek Hunt
    • Technician
    • (uncredited)
    Derek Martin
    • UNIT Soldier
    • (uncredited)
    Cy Town
    Cy Town
    • Technician
    • (uncredited)
    Terry Walsh
    • UNIT Soldier
    • (uncredited)
    • Directors
      • Douglas Camfield
      • Barry Letts
    • Writers
      • Don Houghton
      • Sydney Newman
      • Donald Wilson
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews5

    8.3764
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    10

    Featured reviews

    9Sleepin_Dragon

    The end of Liz and Pertwee's standout season

    Inferno has been magical up until now.

    The Doctor's back on Earth having escaped the parallel universe, but he's unconscious. Stahlman is pushing ahead with penetration zero, clearly affected, but the Doctor isn't on hand. A semi conscious Doctor babbles about output pipe 2 and tells Liz to reverse the systems. Liz dashes to the control room and orders it. The Doctor explains to Liz and the Brig where he's been, the Primords arrive before penetration zero.....

    When the Doctor explains to Liz and the Brig what happened in the parallel worlds it was brilliantly delivered, he's such a great actor.

    In truth I think episode 6 was the peak, but part 7 is another great episode.

    Watching Inferno, I've been reminded of 1984 drama threads, the bleakness of it, but the story is very similar to Conan Doyle's When the world screamed.

    I was so gutted that this was the last appearance of Liz, she was a fantastic companion, and featured in some superb episodes. The series was intelligent, she was cutting, the format worked so well. I love Katy Manning, so much, but Jo Grant was not a patch on Liz, the series seemed to go backwards after Inferno, so many dull and repetitive stories would follow.

    The series has been outstanding, and Inferno has been its peak, fantastic overall.
    10A_Kind_Of_CineMagic

    Hot stuff!

    Review of all 7 episodes:

    Inferno has a tremendous reputation and that is very well deserved, it is fabulous in almost every way. The brilliance of the story, script and acting is clear throughout and particularly in the famous portion of the story which involves an alternative reality with fascist versions of the Brigadier, Liz, Benton and guest characters. This highly entertaining aspect of the story brings out fantastic performances from Nicholas Courtney and Caroline John as villainous versions of their regular characters. When this alternative reality is brought in, it is Doctor Who at its truly magnificent best.

    The story involves a scientific project lead by Professor Stahlman to drill through the earth's crust which runs into trouble due to Stahlman's refusal to slow down or take precautions and due to a mysterious green substance coming from underground which causes physical and mental changes to those who touch it. The Doctor throws in a whole new dimension - literally - when he accidentally causes the TARDIS console to transport him to a parallel universe where the same scenario is occurring but in a fascist Britain.

    The entire script is superb, intelligent and believable with great dialogue delivered perfectly by the whole cast. Pertwee, Courtney and Caroline John are at their very best throughout whilst John Levene not only fully establishes Benton as an extremely good regular character he also plays the fascist version of Benton with gusto. There are great realistic guest characters played to perfection. Olaf Pooley (Stahlman), Christopher Benjamin (Sir Keith), Sheila Dunn (Petra Williams) and Derek Newark (Greg Sutton) could not be better. The story has a nice gritty, grown up science fiction feel but also has bags of action, stunts, thrills and fun.

    The plot thread where people touch a substance emanating from beneath the Earth's crust and turn into werewolf-like creatures known as 'primords' is the least impressive aspect of the story in my opinion and even that is very entertaining. At first I disliked the primords subplot but after repeated viewings I realised it makes more sense than it first appeared. The substance affects the people physically and mentally at different rates depending on how much they touch. It drives them to seek extreme heat and to try to achieve the penetration of the earth's crust. They use the knowledge they had before being affected to help them. It is actually a fun idea providing a lot of thrills but the make-up effects were limited by the age and budget. That does not detract from the quality of this really fantastic story which I would put easily in my top 15 or 20 stories of all time. It is a true classic.

    The vast majority of this 7 parter is truly special and it deserves the huge praise it receives.

    My Ratings: All 7 Episodes - 10/10

    Season 7 Review:

    Season 7 was the biggest change in the show's history. A new colour presentation instead of black and white. A new Doctor with a very different persona. A new format with fewer stories which generally had more episodes. A new concentration on contemporary Earth. A new team helping the Doctor with the extensive use of UNIT. This all worked terrifically well thanks to the incredible writing, acting and production. It simply is one of the best seasons of Doctor Who (both classic and new series) of all time. Near perfect magic.

    Season 7 average rating: 9.34/10

    Related interests

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    Drew Barrymore and Pat Welsh in E.T. the Extra-Terrestrial (1982)
    Family
    James Earl Jones and David Prowse in Star Wars: Episode V - The Empire Strikes Back (1980)
    Sci-Fi

    Storyline

    Edit

    Did you know

    Edit
    • Trivia
      This was the last serial that was longer than 6 episodes; after this, all serials were between 2 and 6 episodes in length.
    • Goofs
      The Doctor said he traveled "a few seconds forward in time, and a few hundred yards due east of this place." Yet he managed to return after only twenty one seconds.
    • Quotes

      [last lines]

      Brigadier Lethbridge-Stewart: "Pompous, self-opinionated idiot" I believe you said, Doctor?

      Doctor Who: Yes, well, we... we don't want to bear a grudge for a few hasty words, do we?

      Brigadier Lethbridge-Stewart: Mmm.

      Doctor Who: No, not after all the years we've worked together. Now come along, my dear fellow. Put on a smile! Let's remember all...

      [trails off as Liz laughs]

    • Connections
      Featured in Doctor Who: The Pertwee Years (1992)

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    Details

    Edit
    • Release date
      • June 20, 1970 (United Kingdom)
    • Country of origin
      • United Kingdom
    • Official site
      • BBC (United Kingdom)
    • Language
      • English
    • Filming locations
      • BBC Television Centre, Wood Lane, Shepherd's Bush, London, England, UK(Studio)
    • Production company
      • British Broadcasting Corporation (BBC)
    • See more company credits at IMDbPro

    Tech specs

    Edit
    • Runtime
      • 25m
    • Color
      • Color
    • Sound mix
      • Mono
    • Aspect ratio
      • 1.33 : 1

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