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![](https://image.tmdb.org/t/p/w342/xinqAmYrZ1TEwowcQhgTkZVtVE0.jpg)
The Mind of Evil (1)
The Doctor and Jo head to Stangmoor Prison to investigate the Keller Machine, which drains the evil impulses from prisoners' minds, while UNIT are handling security at the first world peace conference.
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![](https://image.tmdb.org/t/p/w300/unhJQWcgh6FPlyCaKXTnSLT1DrJ.jpg)
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Other episodes for this season
![Terror of the Autons (1)](https://image.tmdb.org/t/p/w300/ababhKWT8dzDB1PEvhVKlE3bZMg.jpg)
![Terror of the Autons (2)](https://image.tmdb.org/t/p/w300/xuWmDDN4xelNWRVnprlIdh66gy.jpg)
![Terror of the Autons (3)](https://image.tmdb.org/t/p/w300/74ubouYCf8YBUJmH0B1kxx0YiuO.jpg)
![Terror of the Autons (4)](https://image.tmdb.org/t/p/w300/mF8dKnDtOXBR9cNtVy4juaYxyb4.jpg)
![The Mind of Evil (1)](https://image.tmdb.org/t/p/w300/3gvFHuYgkCfayuXGCYJcvIgbxGv.jpg)
![The Mind of Evil (2)](https://image.tmdb.org/t/p/w300/32uc194vlqiCd2k15LBHSIaYQ9o.jpg)
![The Mind of Evil (3)](https://image.tmdb.org/t/p/w300/e0BL5PbIVHdwAogatZTHPiY6GEZ.jpg)
![The Mind of Evil (4)](https://image.tmdb.org/t/p/w300/bWbGqhiLEdaR03QtmulXGTGzuoz.jpg)
![The Mind of Evil (5)](https://image.tmdb.org/t/p/w300/p9K7T9huO55IDPiTM6STXdsKI7J.jpg)
![The Mind of Evil (6)](https://image.tmdb.org/t/p/w300/7BxLHQL4Rqfn9D1RJd4HTd8innf.jpg)
![The Claws of Axos (1)](https://image.tmdb.org/t/p/w300/qNoEbmhZssaBsB9FXBFsFYJFlqT.jpg)
![The Claws of Axos (2)](https://image.tmdb.org/t/p/w300/ompHbPcPlOvkse7jzGg3514xX5s.jpg)
![The Claws of Axos (3)](https://image.tmdb.org/t/p/w300/uv96ZPfm9GpO1E3ppEMymOZ4Eiz.jpg)
![The Claws of Axos (4)](https://image.tmdb.org/t/p/w300/fdI8kLdqrV4FvkealqysqxQZSz9.jpg)
![Colony in Space (1)](https://image.tmdb.org/t/p/w300/cmz2roe0GXGIO5qPYtVnIVC5Byq.jpg)
![Colony in Space (2)](https://image.tmdb.org/t/p/w300/jcH97toHo1OfkZ29fTEwCdBEgj7.jpg)
![Colony in Space (3)](https://image.tmdb.org/t/p/w300/fhEy4a8qDo0D0Cnjt5P14EUF0WW.jpg)
![Colony in Space (4)](https://image.tmdb.org/t/p/w300/wlVjXnv6RimRRjjvHczoQkRmOEB.jpg)
![Colony in Space (5)](https://image.tmdb.org/t/p/w300/b07fpkUnw5CKvEEnzSQhBMgB5wD.jpg)
![Colony in Space (6)](https://image.tmdb.org/t/p/w300/4HkOosQXZTF0IJ2st8n5SdturPh.jpg)
![The Dæmons (1)](https://image.tmdb.org/t/p/w300/BMwUDFyIHcKqcIuQRACh6CudtA.jpg)
![The Dæmons (2)](https://image.tmdb.org/t/p/w300/cI1gkqBCGr4SSLxqE9sIv1gC6Lc.jpg)
![The Dæmons (3)](https://image.tmdb.org/t/p/w300/35VvuCrSH5tOQhQqaqCeT7h92Wy.jpg)
![The Dæmons (4)](https://image.tmdb.org/t/p/w300/aKilb0SfkP2xXXCOTImIG5SKbfP.jpg)
![The Dæmons (5)](https://image.tmdb.org/t/p/w300/YMVyS19pnjGt8eV65EPNovBb2e.jpg)