Martha Jones summons the Doctor back to modern-day Earth, but an old enemy lies in wait. How scary is the episode? With Michelle Ryan. Stop the attack! Read exclusive adventures. Next Time ...
Doctor Who (1963–1996) — Season 12, The Sontaran Experiment: Part 1 Arriving on Earth, the Doctor, Harry and Sarah meet a group of stranded human colonists. BBC One ...
Martha Jones summons the Doctor back to modern-day Earth, but an old enemy lies in wait. Meet the new Doctor! See the Doctor regenerate! ...of the Tenth Doctor. Get the latest updates Next Time ...
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