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The Invasion of Time: Part Four
Last updated 02 January 2017
8:30pm-9:00pm EST (01:30 GMT) < > « »
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Featuring: Tom Baker, Louise Jameson, John Leeson, Christopher Tranchell
As the Vardans finally fully materialise on Gallifrey, the Doctor prepares to spring his trap. But does a more deadly alien force lie behind the Vardans?
Synopsis Source: Doctor Who Guide
Broadcast Source: Retro TV