Doctor Who: Season 16, Episode 21

The Armageddon Factor: Part One (20 Jan. 1979)

TV Episode  -   -  Adventure | Drama | Family
Your rating:
    1 2 3 4 5 6 7 8 9 10 -/10 X  
Ratings: 7.4/10 from 136 users  
Reviews: 2 user | 3 critic

The Doctor and company drop in on the planet Atrios, whose inhabitants are in an interplanetary war with their twin planet Zeos. Although Astra, Princess of Atrios, wishes for peace, the ... See full summary »



(by), (by), 1 more credit »
0Check in

Watch Now

From $1.99 on Amazon Instant Video


Editors' Spotlight

IMDb Picks: March

IMDb's editors share the movies and TV shows they are excited to see in March.

User Lists

Related lists from IMDb users

a list of 1120 titles
created 08 Oct 2012
list image
a list of 242 titles
created 11 Aug 2013
a list of 551 titles
created 25 Aug 2013
list image
a list of 34 titles
created 5 months ago
a list of 26 titles
created 4 months ago

Related Items

Connect with IMDb

Share this Rating

Title: The Armageddon Factor: Part One (20 Jan 1979)

The Armageddon Factor: Part One (20 Jan 1979) on IMDb 7.4/10

Want to share IMDb's rating on your own site? Use the HTML below.

Take The Quiz!

Test your knowledge of Doctor Who.
« Previous Episode | 500 of 695 Episodes | Next Episode »


Episode complete credited cast:
Davyd Harries ...
Ian Saynor ...
John Leeson ...
K9 (voice)
Ian Liston ...
Susan Skipper ...
John Cannon ...


The Doctor and company drop in on the planet Atrios, whose inhabitants are in an interplanetary war with their twin planet Zeos. Although Astra, Princess of Atrios, wishes for peace, the Marshal, her commander of the military, does not share her views. So, while the TARDIS is in orbit around the planet, the Marshal targets the Doctor for destruction. Written by Moviedude1

Plot Summary | Add Synopsis

Plot Keywords:

robot dog | See All (1) »


Not Rated | See all certifications »




Release Date:

20 January 1979 (UK)  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
See  »

Did You Know?


The story was originally called Armageddon. It was Douglas Adams who came up with The Armageddon Factor. See more »


The Marshal: You don't beg for peace, Princess. You win it.
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

very good, if not really great and almost overlong, six-parter episode
21 August 2008 | by (United States) – See all my reviews

The Armageddon Factor features the Doctor and Romanna coming to a planet where Princess Astra is trying to bring peace to her planet Atrios and has to contend with a conniving and war-mongering Marshall, who only wants to wage battle and some outcome with planet Zeos. But as it turns out, maybe not entirely surprisingly, there's more sinister elements- like the black guardian and his Shadow figure with the dark cloak and overtly dastardly demeanor/voice. Throughout this six-parter episode we get equal amounts of atypically (and always enjoyably) witty and British aside-type dialog and those diggs from the Doctor that show he has another motive going on nine times out of ten- usually the right one- and some wooden or terribly overwrought acting (Lalla Ward as the Princess and John Woodvine as the Marshall respectively), and a couple of shoddy special effects.

And while we get a really amusing side character with the Doctor's old school chum- bringing about his real name as Theta Sigma- and some nail-biting tension in the fifth and sixth acts, there's something about the episode that feels padded and big, despite the importance of the key and its sixth "component". Nevertheless, fans of classic Tom Baker won't be disappointed as there's many scenes that ring out as amazing and fun and and kooky (i.e. Baker's momentary power-craving with the key towards the last part) even intellectually stimulating (I liked how the Marshall is frozen in time right when he reaches his climactic glory at Zeos) and a lot of great K-9 action that only reinforces him/it as one of the great TV dogs/computers. If it's not entirely perfect the writers and actors come up with some clever moments and delicious hambone acting to suffice.

4 of 6 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
Our Blessed Davison? captain-emerald
How many times has the Doctor killed someone? Dr Wily
question about davros IMDbMember99
Why is "Destiny of the Daleks" disliked? timmdoolen
10 Most Cringeworthy Moments from 2005 to 2009 emperordalek
Stories that don't have the TARDIS AardvarkRatnik
Discuss The Armageddon Factor: Part One (1979) on the IMDb message boards »

Contribute to This Page

Create a character page for: