Part Three
Series Episode Number: 502World Premiere: Sat 3 Feb 1979 - 6:28pm GMT [BBC One] (United Kingdom)
First Broadcast: Fri 11 May 2001 - 10:30pm CDT [Prairie Public Television]
Running Time: 25 minutes 2 seconds
7.80 Million (UK)
Chart Position: 76 () (UK)
Recorded on Tue 21 Nov 1978 in Television Centre 3
Journeying to Zeos by transmat, the Doctor finds that it is an empty world. As the Marshal prepares to launch his final attack, the Doctor meets the commander of Zeos's forces.
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