S1·E21 The Sea of Death
- Episode
- Season 1, Episode 21
- Air Date
- April 11, 1964
- Runtime
- 24 minutes
- Director
- John Gorrie
- Writer
- Terry Nation
- Score
- 6.8/10 (11 TMDB votes)
- Story Type
- Core Character Arc
Synopsis
The alien world of Marinus. Perfect peace has reigned here for decades due to the mind-controlling influence of a machine known as the Conscience. But now a race known as the Voord have developed an immunity and Arbitan, keeper of the machine, has been forced to scatter the vital control keys around the planet. Now he needs the help of the time travellers to get them back - it will be an extraordinary journey, with perils every step of the way...
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Frequently Asked Questions
When did Season 1 Episode 21 of Doctor Who air?
Season 1, Episode 21 ('The Sea of Death') originally aired on April 11, 1964.
How long is Season 1 Episode 21 ('The Sea of Death')?
The runtime for this episode is approximately 24 minutes.
What happens in Doctor Who Season 1 Episode 21?
The alien world of Marinus. Perfect peace has reigned here for decades due to the mind-controlling influence of a machine known as the Conscience. But now a race known as the Voord have developed an immunity and Arbitan, keeper of the machine, has been forced to scatter the vital control keys around...
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