Doctor Who (1963–1989)
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Logopolis: Part Four 

With the universe collapsing, the Doctor forms an uneasy alliance with the Master to save it. In case all does not go well, the Watcher takes the Doctor's companions to a safe place, but ... See full summary »


Peter Grimwade


Christopher H. Bidmead (by)




Episode complete credited cast:
Tom Baker ... Doctor Who
Peter Davison ... The Doctor
John Fraser ... The Monitor
Anthony Ainley ... The Master
Janet Fielding ... Tegan
Matthew Waterhouse ... Adric
Sarah Sutton ... Nyssa
Christopher Hurst Christopher Hurst ... Security Guard


With the universe collapsing, the Doctor forms an uneasy alliance with the Master to save it. In case all does not go well, the Watcher takes the Doctor's companions to a safe place, but his plans for them don't stop there. The one hope for all lies back on Earth. Written by statmanjeff

Plot Summary | Add Synopsis


Did You Know?


This episode was watched by 6.1 million viewers on its original transmission. See more »


As the Doctor and Master struggle on the gantry, the Doctor's scarf snags on the structure, and, as the Master breaks away and returns to the cabin, it falls to the decking, some distance from the now prone Doctor, who continues to crawl on. In the next shot, showing the view from the cabin-end of the structure, with the Doctor crawling away, he is suddenly wearing the scarf again. See more »


[last lines before regenerating]
The Doctor: It's the end. But the moment has been prepared for.
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Crazy Credits

Due to the regeneration, Tom Baker's image is removed from the credits sequence by repeating the periphery of the background to the center of the frame. This effect is continued until halfway through the last cast credit. See more »


Referenced in Doctor Who: The Doctor Falls (2017) See more »


Symphony No 8 in B minor 'Unfinished', D759
Composed by Franz Schubert
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User Reviews

The end, not a moment I've ever been prepared for.
9 September 2020 | by Sleepin_DragonSee all my reviews

The Master had caused irreversible damage to The Universe by destroying Logopolis, only The Doctor, along with the help of his old foe can delay the spread of destruction.

I'm not sure that Logopolis, as a story, ends as well as it starts, initially it's so complex and mournful, apart from the main events this final part is somehow a bit wishy washy.

One of the best sequences comes from Nyssa, where the horrified new tea watches as her planet vanishes from the skies. They truly made the right decision in bringing back Sarah Sutton.

Ainley is very good once again, he would have several excellent appearances, none quite so headline grabbing as this one.

Tom, the end off possibly The Greatest Doctor, I am not sure about you, but to me be looks a little ill throughout this one, perhaps exhausted, you decide. He bows out a hero. It's a great regeneration sequence, like a greatest bits of Doctor Who reel.

It's a decent enough story, but the final part is more about Tom than the events on Logopolis, and for that it deserves a good score, 8/10.

Thank you Tom.

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Release Date:

21 March 1981 (UK) See more »


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Aspect Ratio:

1.33 : 1
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