Episode
Doctor Who: The Sea of Death
Overview
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...
Details
- Series
- Doctor Who
- Season
- Season 1
- Episode
- Episode 21
- Air date
- 1964-04-11
- Runtime
- 24 min
Episode context
The Sea of Death is Episode 21 in Season 1 of Doctor Who. It aired on 1964-04-11. The runtime is 24 min.
Previous / Next
Episode 20: Assassin at Peking
Tegana finally makes his move to assassinate the Khan, giving the Doctor and his friends an opportunity to thwart his plans and regain the TARDIS.
Episode 22: The Velvet Web
The Doctor and his friends arrive in the apparently idyllic city of Morphoton but Barbara soon begins to realise there is more to their hosts than meets the eye.
More episodes from this season
Episode 19: Mighty Kublai Khan
The Doctor, Ian and Barbara are forced to surrender to Tegana and Marco, leaving both of them the opportunity to gain possession of the TARDIS.
Episode 23: The Screaming Jungle
The search for the second key takes the travellers to a jungle where Ian and Barbara come under threat from rapidly growing plants.
Episode 18: Rider from Shang Tu
The Doctor and his friends elect to warn Marco of Acomat's attack even though it means losing their chance to gain access to the TARDIS.
Episode 24: The Snows of Terror
Searching for the third key, Ian and Barbara meet with the sinister trapper Vasor before following Susan and the others into a cave system guarded by the mysterious Ice Soldiers.
Episode 17: The Wall of Lies
The Doctor's group manage to rescue Barbara from the Mongols but once more Marco remains unaware of Tegana's involvement.
Episode 25: Sentence of Death
The group are reunited with the Doctor in the city of Millennius where Ian faces trial for murder after the fourth key is stolen.
Episode 16: Five Hundred Eyes
The Doctor and Susan are able to supply Marco with condensation that has formed inside the TARDIS, saving the group from dying of thirst. When the group are reunited with Tegana, the travellers begin to suspect he is up to something.
Episode 26: The Keys of Marinus
The Doctor and his friends must locate the real murderers and the fourth key before heading off for a final confrontation with the Voord
Episode 15: The Singing Sands
Tegana sabotages the party's water bags, leaving them in dire need of fresh supplies.
Episode 27: The Temple of Evil
The TARDIS arrives on Earth landing in 16th century Aztec society. Barbara goes off exploring - despite the Doctor's orders not to wander off - and is taken away by the high priest Autloc who believes she is the reincarnation of the goddess Yetaxa. They believe it is a sign that the rains - which are late - will now come. The high priest of sacrifice Tlotoxl recruits Ian to lead their army but he finds he has a rival in Ixta. Ian is less than comfortable with his role when he learns that they are to deliver the human sacrifice to the high priest at the rain ceremony. The Doctor emphasizes that they must not interfere with Aztec rituals, something that does not sit well with Barbara.