The Doctor tries to convince Sorenson to sacrifice himself for the rest of the crew but Salamar's attempt to deal with the situation causes their problem to multiply.
1. Terror of the Zygons: Part One
Aired: Aug 30, 1975The Doctor, Sarah and Harry return to Earth in response to an emergency space...
2. Terror of the Zygons: Part Two
Aired: Sep 6, 1975The Zygon traps the Doctor and Sarah in a decompression chamber while Harry i...
3. Terror of the Zygons: Part Three
Aired: Sep 13, 1975The Doctor and the Brigadier begin to realise who the Zygon imposters among t...
4. Terror of the Zygons: Part Four
Aired: Sep 20, 1975UNIT attempt to track down the Zygon ship while Broton prepares to have the S...
Aired: Sep 27, 1975The Doctor and Sarah answer a distress call and find themselves on Zeta Minor...
Aired: Oct 4, 1975The Doctor realises that Zeta Minor lies on the boundary between the universe...
Aired: Oct 11, 1975The Doctor makes a deal with the Anti-Matter Beast to return all the anti-mat...
Aired: Oct 18, 1975The Doctor tries to convince Sorenson to sacrifice himself for the rest of th...
Aired: Oct 25, 1975The Doctor and Sarah are drawn off course and, instead of UNIT HQ, they arriv...
10. Pyramids of Mars: Part Two
Aired: Nov 1, 1975The Doctor, Sarah and Laurence try to find a way to sever Sutekh's link to th...
11. Pyramids of Mars: Part Three
Aired: Nov 8, 1975The Doctor and Sarah try to destroy Sutekh's rocket but the Osiran's mental p...
12. Pyramids of Mars: Part Four
Aired: Nov 15, 1975Sutekh forces the Doctor to transport Scarman and a mummy to Mars, where the ...
13. The Android Invasion: Part One
Aired: Nov 22, 1975The Doctor and Sarah return to Earth in the present day to find a strangely d...
14. The Android Invasion: Part Two
Aired: Nov 29, 1975The Doctor suspects Crayford brought something to Earth in his rocket, as he ...
15. The Android Invasion: Part Three
Aired: Dec 6, 1975The Doctor is captured by Styggron and left to die in the destruction of the ...
16. The Android Invasion: Part Four
Aired: Dec 13, 1975The Doctor and Sarah reach Earth and try to warn the research centre about th...
17. The Brain of Morbius: Part One
Aired: Jan 3, 1976The Tardis lands in a spaceship graveyard on the bleak planet Karn, where The...
18. The Brain of Morbius: Part Two
Aired: Jan 10, 1976The Sisterhood prepare to sacrifice the Doctor to the Sacred Flame and Sarah ...
19. The Brain of Morbius: Part Three
Aired: Jan 17, 1976The Doctor attempts to restore the Sacred Flame to prove his good intentions ...
20. The Brain of Morbius: Part Four
Aired: Jan 24, 1976Morbius goes on the rampage, forcing the Doctor and Solon to team up to try a...
21. The Seeds of Doom: Part One
Aired: Jan 31, 1976Members of the World Ecology Bureau discover a centuries-old seed pod buried ...
22. The Seeds of Doom: Part Two
Aired: Feb 7, 1976With a killer Krynoid on the loose, the Doctor, Sarah and the last surviving ...
23. The Seeds of Doom: Part Three
Aired: Feb 14, 1976Surviving two attempts to end their lives, the Doctor and Sarah seek the iden...
24. The Seeds of Doom: Part Four
Aired: Feb 21, 1976Sarah is saved from a Krynoid fate and runs off, but the same can't be said f...
25. The Seeds of Doom: Part Five
Aired: Feb 28, 1976In the interest in self-preservation, Chase's men side with The Doctor agains...
26. The Seeds of Doom: Part Six
Aired: Mar 6, 1976Chase is obviously under Krynoid control. The Doctor suspects possession but,...
Streaming in:
Main Cast
Guest Staring
Current Status: Ended
Network: BBC One
Production Country: United Kingdom
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