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Classic Who S21 • Serial 1 · (4 episodes)

Warriors of the Deep

60% 490 votes

First aired Thursday, January 5, 1984
Production Code 6L
Written by Johnny Byrne
Directed by Pennant Roberts
Runtime 100 minutes
Time Travel Future
Tropes: (Potential Spoilers!) Base Under Siege
Locations Sea Base 4 Earth
Synopsis

Earth, 2084. Two global superpowers hover on the brink of war. When the TARDIS is forced to make an unplanned visit to Sea Base 4, the Fifth Doctor, Tegan and Turlough find themselves accused of being enemy agents. Quicky embroiled in a deadly game of paranoid intrigue, it becomes clear that others on the base have sabotage and murder in mind.

However, there is a greater threat to Mankind: the Silurians and Sea Devils, prehistoric reptiles seeking to reclaim the Earth. Can the Doctor prevent them implementing their 'final solution' and triggering a war that could wipe out the entire human race?

4 Episodes:

First aired Thursday, January 5, 1984
Runtime 25 minutes
Written by Johnny Byrne
Directed by Pennant Roberts
UK Viewers 7.6 million
Appreciation Index 65

Synopsis

Earth's ocean floor, 2084. With two superpowers poised on the brink of a devastating photonic war, a missile base comes under attack from the reptilian Sea Devils and Silurians, intent on eradicating the upstart human race and reclaiming the planet…

First aired Friday, January 6, 1984
Runtime 25 minutes
Written by Johnny Byrne
Directed by Pennant Roberts
UK Viewers 7.5 million
Appreciation Index 64

Synopsis

Just as the Doctor gains a tentative trust from the humans, a Silurian battle cruiser approaches. The Doctor warns Commander Vorsha to hold his fire and find out what they want, but is the level-headed commander one who'll listen?

First aired Thursday, January 12, 1984
Runtime 25 minutes
Written by Johnny Byrne
Directed by Pennant Roberts
UK Viewers 7.3 million
Appreciation Index 62

Synopsis

As Vorshak's crew are cut down by Sauvix's Sea Devil Warriors, the Doctor is running out of ways to broker a peace between the opposing species.

First aired Saturday, January 14, 1984
Runtime 25 minutes
Written by Johnny Byrne
Directed by Pennant Roberts
UK Viewers 6.6 million
Appreciation Index 65

Synopsis

With Silurians in control of the base, Icthar reveals his plan for a final solution to Earth's human problem, which presents the Doctor a great moral dilemma.

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Also featuring:

Icthar  Myrka