Doctor Who (1963–1989)
4 user

The Android Invasion: Part Four 

The Doctor and Sarah reach Earth and try to warn the research centre about the Kraal invasion before Styggron unleashes his virus.




On Disc

at Amazon



Episode cast overview:
Patrick Newell ...
Milton Johns ...
Martin Friend ...
Max Faulkner ...
Dave Carter ...
Hugh Lund ...
Heather Emmanuel ...


The Doctor and Sarah reach Earth and try to warn the research centre about the Kraal invasion before Styggron unleashes his virus.

Plot Summary | Add Synopsis





Release Date:

13 December 1975 (UK)  »

Company Credits

Show detailed on  »

Technical Specs

Sound Mix:


Aspect Ratio:

1.33 : 1
See  »

Did You Know?


Timing reasons meant that a key scene which would have explained how the Doctor reactivated his android duplicate, as well as accounting for the Kraal invasion armada was cut. See more »


Doctor Who: Nobody knows who's who around here.
See more »


Referenced in The Village That Came to Life (2012) See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Intriguing and very well executed 1st episode and a fun middle section but ends up with a big letdown in episode 4.
25 November 2014 | by (South Wales, UK) – See all my reviews

Review of all 4 episodes:

In the otherwise incredible Season 13 this story ends up being the one disappointment. That does not start out to be the case though as the first episode is intriguing and well executed. It is not the most perfect episode but has sufficient interest, difference and promise to scrape a 10. That leads on to a very good second episode and a mainly very decent third episode but it all falls apart in the 4th episode which causes the plot to make no sense.

The Doctor and Sarah arrive in the village of Devesham after a run in with some threatening figures in helmets and boiler suits. They find the village deserted but then residents return acting very strangely as if in a trance before all suddenly acting more normally at precisely the same time. It turns out to be an invasion plan by alien race the Kraals using androids and a deadly virus.

The eeriness and mystery of the first episode draws you in and there is good fun between The Doctor and Sarah with some funny scenes and some very good dialogue. The atmosphere created in this first episode is diminished gradually once the Kraals turn up and the mystery begins to be lifted but the second episode is still very entertaining. The Kraals are actually a decent enemy mixing military menace with science. There is also a fun and striking cliffhanger at the end of episode 2. There are not many faults in these first two episodes and it looks like almost maintaining the superb standard of season 13. The third episode starts to show some cracks in the story writing, however, as the plot-holes begin to become apparent. You begin to realise the plans of the Kraals make no sense as they destroy their carefully created fake village and reveal a plan to use a virus to attack mankind rather than androids but still at this stage things are still seeming possible to be salvaged. Then there is the rather dodgy rocket journey which I felt was the start of things going rapidly downhill. None of the plans make sense in the end and we learn Crayford supposedly never realised he had an eye under his eye patch. The dialogue and story in episode 4 just falls to pieces. The plot-holes increase hugely leaving you in total disbelief that any of it makes much sense at all. Also as Nicholas Courtney was unavailable the Brigadier had to be replaced in the story by a Colonel who is unconvincing and a very poor substitute for the wonderful 'Brig'. We do get the final appearances for Benton and Harry Sullivan in Doctor Who which is all the more sad as their final episode is pretty disappointing.

Overall this is a fun and interesting adventure that sadly ultimately makes little sense when you reach the conclusion (rather like many stories since 2010 in the Steven Moffatt lead era!).

0 of 5 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
NEW WHO: An Alternative Universe of Stories Doctor_Omega
Was Colin Miscast? Doctor_Omega
How do big objects get into the TARDIS? Dr Wily
Story with the highest body count? Dr Wily
Werewolves? Dr Wily
Stories skipped by Retro TV Dr Wily
Discuss The Android Invasion: Part Four (1975) on the IMDb message boards »

Contribute to This Page