Part TwoSeries Episode Number: 445
World Premiere: Sat 5 Feb 1977 - 6:22pm GMT [BBC One] (United Kingdom)
First Broadcast: Wed 28 May 1980 - 5:30pm CDT [WTTW 11 Chicago]
Running Time: 24 minutes 15 seconds
12.40 Million (UK)
Chart Position: 17 () (UK)
Recorded on Tue 23 Nov 1976 in TC1
The Doctor and Leela are blamed for the murder of one of the sandminer's crew. But the real killer is still on the loose, intent on wiping out more of the humans.