Doctor Who - The Ultimate Foe (1)

Seizoen: 23 - Aflevering: 13 / 697 - Eerst uitgezonden: 29 november 1986 - Episode ID: 76044

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...