The Armageddon Factor (4)

Feb 10, 1979 on BBC One at 5:15 PM
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Summary

The Doctor is forced into a desperate gambit to prevent a massacre. But it is getting harder to tell friend from foe.

Previous episode

The Armageddon Factor (3)
Season 16 Episode 23

Feb 03, 1979

Next episode

The Armageddon Factor (5)
Season 16 Episode 25

Feb 17, 1979

Guest stars

Ian Saynor, William Squire