Part TwoSeries Episode Number: 485
World Premiere: Sat 7 Oct 1978 - 6:21pm BST [BBC One] (United Kingdom)
First Broadcast: Fri 22 Dec 2000 - 10:30pm CST [Prairie Public Television]
Running Time: 25 minutes 30 seconds
7.40 Million (UK)
Chart Position: 52 () (UK)
Recorded on Tue 23 May 1978 in Television Centre 6
Still in search of the missing planet, Calufrax, the Doctor and Romana encounter the telepathic Mentiads and Zanak's ruler, the half man, half robot Captain.