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As recursive occlusion threatens to destroy everything and everyone in Castrovalva, the Master's space/time trap is revealed, with Adric at its heart...

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25 minutes

Last on

Wed 13 Jan 198219:45
BBC One Wales

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Castrovalva: Part 3Season 19

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Four to Doomsday: Part 1Season 19

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  • Tue 12 Jan 198219:05
    BBC One except Wales
  • Wed 13 Jan 198219:45
    BBC One Wales

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