Last updated 09 January 2020

Part Twelve

Part Twelve

Series Episode Number: 651

World Premiere: Sat 22 Nov 1986 - 5:45pm GMT [BBC One] (United Kingdom)
First Broadcast: Tue 16 Jun 2015 - 8:30pm EDT [Retro TV]
Running Time: 24 minutes 45 seconds

5.20 Million (UK)

Appreciation Index: 69 (UK)

Chart Position: 89 () (UK)

The Doctor realises that if he can speed up the Vervoids life span with light, they will decay. Using vionesium, he does so, unwittingly causing genocide in the process