The Ultimate Foe (1)

Nov 29, 1986 on BBC One at 5:15 PM
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Summary

With the Doctor now reluctantly admitting to genocide, things look bad. But the Doctor's nemesis, the Master, intervenes, and the real truth behind the trial comes to light - and with it, the shocking secret of the Valeyard's true identity...

Previous episode

Terror of the Vervoids (4)
Season 23 Episode 12

Nov 22, 1986

Next episode

The Ultimate Foe (2)
Season 23 Episode 14

Dec 06, 1986

Guest stars

Geoffrey Hughes