The Seeds of Death

Not to be confused with the 1976 Fourth Doctor serial The Seeds of Doom.
048 The Seeds of Death
Doctor Who serial

The Doctor is menaced by the fungus emitted by the seeds of death
Directed by Michael Ferguson
Written by Brian Hayles
Terrance Dicks (episodes 3-6, uncredited)
Script editor Terrance Dicks
Produced by Peter Bryant
Executive producer(s) None
Incidental music composer Dudley Simpson
Production code XX
Series Season 6
Length 6 episodes, 25 minutes each
Date started 25 January 1969
Date ended 1 March 1969
← Preceded by Followed by →
The Krotons The Space Pirates

The Seeds of Death is the fifth serial of the sixth season of the British science fiction television series Doctor Who. Written by Brian Hayles and an uncredited Terrance Dicks and directed by Michael Ferguson, it originally aired in six weekly parts from 25 January to 1 March 1969. It sees the return of the Ice Warriors, previously introduced by Hayles in his fifth season serial, The Ice Warriors.

In the story, late-21st century Earth is dependent on its T-Mat teleportation system. When it malfunctions, the Doctor (Patrick Troughton), along with his companions Jamie (Frazer Hines) and Zoe (Wendy Padbury), travel to the moonbase to investigate. They discover the Ice Warriors are planning an invasion of Earth, using T-Mat to transport deadly seedpods to the planet.


At the end of the twenty-first century, a teleportation technology called "T-Mat" has replaced all traditional forms of transport, allowing people and objects to travel instantly anywhere on Earth. Manned space exploration has ceased due to the ease of life on Earth. The Second Doctor, Jamie McCrimmon and Zoe Herriot arrive in a museum on Earth run by Professor Daniel Eldred dedicated to the obsolete technology of rockets. However, something goes amiss at the T-Mat vital relay station on the Moon and the system breaks down. With communications out, and no way to reach the Moon without T-Mat, those responsible for the system, Commander Radnor and his assistant Gia Kelly, turn to Professor Eldred to help. He has been privately building a rocket in hopes of re-igniting interest in space travel. In the absence of a space program to provide trained astronauts, the Doctor and his companions volunteer to crew the rocket. The Doctor also comments that the TARDIS is not suitable for short range use after Zoe informs Jamie that the TARDIS would most likely overshoot by a couple of million years.

On the moon, the relay station has been subject to a takeover. Controller Osgood has been killed sabotaging the relay system to try to prevent a takeover, and his deputy Fewsham has been pressed into assisting the invaders. Of the other technicians, Phipps is scared but defiant of the invaders while Locke actively tries to contact Earth and explain the situation, for which he is killed. The invaders are revealed as Ice Warriors, a militant Martian race, have taken control of the moonbase as a staging point for an invasion of Earth. Fewsham repairs the T-Mat link on receive mode and Miss Kelly beams through. She is put to work on repairing the full T-Mat system.

When the Doctor and his companions arrive on the moon by rocket – after a rather bumpy ride - they discover the situation and make contact with Phipps, who has evaded the invaders and is hiding in the moonbase. The Doctor accidentally reveals himself to the Ice Warriors and their leader the Ice Lord, Commander Slaar. It becomes apparent that the Ice Warriors have a deadly plan: they have seeds, which they send to various parts of Earth using T-mat, of a fungus that will multiply and suck all the oxygen from the surrounding atmosphere, making it more comfortable for the Martians but uninhabitable for humans. Once the full T-Mat relay is repaired, one seed is sent to Earth Control and explodes, killing a technician called Brent and alerting Radnor and Eldred of the danger. The seed soon creates foam, which multiplies its effects and imperils more and more people. Other T-Mat terminals across the world receive more seeds with similar effects. Radnor takes a while to work out that the seeds seem to have been deposited in a pattern – all in the Northern zone, where the country is facing winter. The Ice Warriors also use T-Mat to dispatch a small advance force to seize Earth's weather control systems in London and ensure good conditions for the growth of the fungus.

Back on the moon Miss Kelly and Phipps work with Zoe and Jamie to stage diversions and attacks against the Ice Warriors. During their main assault to free the Doctor, Phipps is killed. The Ice Warriors have now retreated to their spacecraft to plan the next stage of their invasion, leaving an opportunity for most of the captives to flee the moonbase. Fewsham, however, remains behind, seemingly fearing an enquiry into his actions if he returns to Earth.

The Doctor’s first action in T-Mat control on Earth is to deduce how to stop the seedpods exploding, and works out they can be defeated using water. This explains where the Ice Warrior beamed to Earth has gone, and the Doctor tracks him down to the weather control system, where the alien has been stationed to prevent any rain fall that would be deadly to the pods. The Doctor and his allies recapture the weather control system and summon rain, destroying the fungus, which is used to the dry conditions on Mars.

Fewsham has meanwhile delivered a crushing blow to the Ice Warriors. He dupes Slaar into revealing in a live link with Earth that the main Martian invasion force is following a homing signal to the Moon, for which he is killed. But at least the Doctor now knows the full extent of the Ice Warrior plans. He decides to return to the moonbase and set a new signal for the Martian fleet from there, but knows to do so will be very dangerous. The Doctor uses T-Mat to return to the Moon and confronts Slaar while cleverly substituting the alternative signal. This draws the Martian fleet away and lures it into the Sun. Slaar moves to kill the Doctor in revenge but the arrival of Jamie in a T-Mat cubicle causes chaos, and Slaar is killed in one of the sonic beams of the last of his warriors. Jamie then kills the surviving Martian and the invasion is over. The Doctor and Jamie return to Earth and then make their goodbyes before departing in the TARDIS with Zoe.


This story introduces the concept of the caste system within Martian society.[1] There are two distinct (unnamed on screen) classes of Martians; the Ice Warriors, which were seen in The Ice Warriors (1967), and the Ice Lords. It becomes clear at the end of Episode One that all of the warriors are subordinate to the Ice Lord Slaar. Moreover, the story indicates that there is even a hierarchy within the Ice Lord class when it introduces the Grand Marshal in Episode Five. This is illustrated by the fact that Slaar is seen taking orders from the Grand Marshal once the Ice Warriors had T-Mat under their control. The appearance of the Martians is also connected with this caste system. Whereas the Ice Warriors tend to wear heavy reptilian armour and large helmets, the Ice Lords tend to wear a slender and less bulky uniform with a more decorative helmet.

While matter transportation technology first appeared in Doctor Who in The Daleks' Master Plan, it was called "particle dissemination". This story calls it "T-Mat", and subsequent stories would settle on the name "transmat" to describe the technology, which would come to be used within Doctor Who much as transporters are used in Star Trek.

The Astral Map prop, first seen in the First Doctor's adventure The Web Planet, appears in a space museum, though it is not referred to as such.[2]


Serial details by episode
EpisodeBroadcast dateRun timeViewers
(in millions)
"Episode One" 25 January 1969 (1969-01-25) 23:11 6.6 16mm t/r
"Episode Two" 1 February 1969 (1969-02-01) 24:26 6.8 16mm t/r
"Episode Three" 8 February 1969 (1969-02-08) 24:10 7.5 16mm t/r
"Episode Four" 15 February 1969 (1969-02-15) 24:57 7.1 16mm t/r
"Episode Five" 22 February 1969 (1969-02-22) 24:56 7.6 16/35mm t/r
"Episode Six" 1 March 1969 (1969-03-01) 24:31 7.7 16mm t/r

Although Brian Hayles is solely credited as the story's author, series script editor Terrance Dicks rewrote Episodes 3 to 6 of the script. This was partly because he considered Hayles's original ending lacklustre and unworkable, but also because originally Jamie McCrimmon was to have been replaced by a new companion called Nik by this story; actor Frazer Hines postponed his departure, however. Dicks was co-credited on the sleeve of the VHS release for his writing duties on the serial.

Patrick Troughton does not appear in Episode 4 as he was on holiday when it was being recorded. A double stands in for him in some shots where the Doctor is seen unconscious on the floor.[4]

Cast notes

This story is the first story to feature Alan Bennion in the role of an Ice Lord, this one named Slaar. Bennion would return as the Ice Lords Izlyr in The Curse of Peladon and Azaxyr in The Monster of Peladon. Sonny Caldinez, who played Slaar's second in command, is the only actor to appear as an Ice Warrior in all four televised Doctor Who stories in the classic series to feature the Ice Warriors. Caldinez also appeared in The Evil of the Daleks as Kemel. Ronald Leigh-Hunt played Commander Radnor in this story. Leigh-Hunt would play Commander Stevenson in Revenge of the Cybermen. Harry Towb later played McDermott in Terror of the Autons. Christopher Coll would later play Stubbs in The Mutants. Steve Peters, who played an Ice Warrior, was billed simply as "Alien" in the Radio Times listing for episode one, so as not to spoil the surprise of the Ice Warriors' appearance.

Commercial releases

In print

The Seeds of Death
Author Terrance Dicks
Cover artist Tony Masero
Series Doctor Who book:
Target novelisations
Release number
Publisher Target Books
Publication date

July 1986 (Hardback)

4 December 1986 (Paperback)
ISBN 0-426-20252-X

A novelisation of this serial, written by Dicks, was published by Target Books in July 1986.

Home media

This story was released on VHS and Betamax in 1985 in an omnibus format. In February 2003, an unedited remastered, VidFIREd version was released on Region 1 and Region 2 DVD. The story was chosen to represent the Patrick Troughton era as part of the Doctor Who 40th Anniversary releases. A special edition Region 1 and 2 DVD with expanded special features and improved picture quality was released along with similarly expanded special editions of the Carnival of Monsters and Resurrection of the Daleks as part of the Revisitations 2 DVD boxed set on 28 March 2011 exclusively in the UK.


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Target novelisation

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