Doctor Who: Season 7, Episode 19

Inferno: Episode 1 (9 May 1970)

TV Episode  |  TV-PG  |   |  Adventure, Drama, Family
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Ratings: 8.3/10 from 216 users  
Reviews: 7 user | 3 critic

A dangerous experiment throws the Doctor into a doomed dimension



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Title: Inferno: Episode 1 (09 May 1970)

Inferno: Episode 1 (09 May 1970) on IMDb 8.3/10

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Episode complete credited cast:
Olaf Pooley ...
Christopher Benjamin ...
Derek Newark ...
Sheila Dunn ...
David Simeon ...
Derek Ware ...
Walter Randall ...
Ian Fairbairn ...


Project Inferno is designed to drill down to the center of the Earth, where it will release a wonderful new energy source called Stahlman's Gas named after the project's director. But the Doctor realizes that unleashing Stahlman's Gas will have horrible consequences from the planet, fears confirmed when a power surge in the TARDIS console sends him to a hostile parallel universe where the project is nearing completion. Written by Anonymous

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Release Date:

9 May 1970 (UK)  »

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Technical Specs

Sound Mix:


Aspect Ratio:

1.33 : 1
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This episode was watched by 5.7 million viewers on its original transmission. See more »

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21 September 2014 | by (South Wales, UK) – See all my reviews

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 and other main characters. This highly entertaining aspect of the story brings out fantastic performances from Nicholas Courtney, Caroline John and John Levene. When this alternative reality is brought in, it is Doctor Who at its truly magnificent best. There are great guest characters and realistic performances throughout the story and a nice gritty, adult feel with intelligent scripting and a fine turn by Pertwee.

There is only one fault in the story which is where people touch a substance emanating from beneath the Earth's crust and turn into werewolf-like creatures known as 'primords'. It is a needless and rather silly addition, not necessary at all for the plot. Without the 'primord' subplot this adventure would easily be in my top 15 or 20 stories of all time. Due to the 'primords' alone it perhaps falls slightly short of that but still is a really fantastic story I would put in my top 40 or 50 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.

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