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The Doctor and a number of people from Perivale follow Ace to the Cheetah-People's world, where the Master lies in wait. He cannot leave without the Doctor's assistance.

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25 minutes

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Enter The Whoniverse

Enter The Whoniverse

Every Doctor, every companion, every enemy. Discover the Whoniverse. Only on Βι¶ΉΤΌΕΔ iPlayer.