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Episode 4
Episode 4 of 4
With the base facing destruction, the Time Lord and his companions battle to secure the anti-virus. Fifth Doctor adventure stars Peter Davison and Sarah Sutton.
Last on
Mon 14 Apr 201400:00
BBC Radio 4 Extra
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- Thu 19 May 201118:00BBC Radio 4 Extra
- Fri 20 May 201100:00BBC Radio 4 Extra
- Sun 4 Nov 201218:00BBC Radio 4 Extra
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