Doctor Who (1963–1989)
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The Seeds of Doom: Part Six 

Chase is obviously under Krynoid control. The Doctor suspects possession but, with the mountainous Krynoid nearing maturity and whacking the mansion to pieces, he concerns himself with the ... See full summary »



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Episode complete credited cast:
Tony Beckley ...
John Challis ...
John Acheson ...
Ray Barron ...
Sergeant Henderson


Chase is obviously under Krynoid control. The Doctor suspects possession but, with the mountainous Krynoid nearing maturity and whacking the mansion to pieces, he concerns himself with the bigger picture and orders the mansion - with Sarah and him still inside - to be bombed. Written by statmanjeff

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Release Date:

6 March 1976 (UK)  »

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Aspect Ratio:

1.33 : 1
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Did You Know?


The episode also marked the final major appearance of UNIT in the series until 1989's Battlefield (although it would be referenced in the Fifth Doctor story Time-Flight, Brigadier Alistair Gordon Lethbridge-Stewart appeared in the 1983 story Mawdryn Undead as a retired civilian, and there is a sequence set at UNIT HQ in The Five Doctors). None of the established UNIT characters are seen in UNIT's brief appearance in this story, as it was felt that there was too little material to warrant bringing back the Brigadier and Sergeant Benton. See more »


When the Doctor and Sarah Jane escape the composting room and go running to the door outside, the Doctor bumps the wall, causing the top corner to wobble conspicuously. See more »


Sir Colin Thackeray: Well, Doctor, do you think we've heard the last of the Krynoid?
Doctor Who: Sir, Colin, the Intergalactic Floral Society - of which, quite naturally, I'm the president - finds Krynoids a difficult subject to study. Their researchers tend to disappear.
Sarah Jane Smith: Hmm, I can imagine: a case of one veg and no meat.
See more »


Featured in The Lively Arts: Whose Dr. Who (1977) See more »

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User Reviews

S13: The Seeds of Doom: Enjoyable and well paced
26 December 2015 | by (United Kingdom) – See all my reviews

Although I spent the first few episodes of this series waiting for the Ice Warriors to show up, it turns out this is not a follow-up to Seeds of Death but rather a new plot. That said, we do open with some sort of pod discovered in the ice of Antarctica, which infects one of the scientists who discovered it. Instead of an alien race of monsters, this is an alien plant which transforms the host, and grows rapidly. The plot of this series mixes the feeling of 1970's light horror, with the talky apocalypse of Quatermass to make for an enjoyable and surprisingly well paced serial.

I say surprising because I noticed this was a 6-parter, and assumed it would be padded out to that. Instead it does have a good flow to it, making good use of the passage of time and changes to location. So, the first few episodes play out as a sort of The Thing, then we switch back to England for the next level of the plot, then the final few episodes see the Krynoid as the main threat. This sense of gradual development across the six episodes works well, while also allowing each section to deliver rather than fill time. The design of the plant monster is pretty good, and it the narrative uses it as well as it uses the human villains, whether it be Chase or Scorby. The cast play to this well; Baker feels a bit too much like Quatermass compared to some previous serials, however he is still good, while Sladen is too. Beckley, Challis, Gilbert and others are all good in support, although none of the usual UNIT faces show up.

An enjoyable and strong finish to a generally good season.

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