Part OneSeries Episode Number: 566
World Premiere: Mon 15 Feb 1982 - 6:57pm GMT [BBC One: Not Wales] (United Kingdom)
First Broadcast: Sun 15 May 1983 - 11:00pm CDT [WTTW 11 Chicago]
Running Time: 24 minutes 11 seconds
9.10 Million (UK)
Chart Position: 54 () (UK)
Recorded on Wed 20 May 1981 in Television Centre 3
The TARDIS lands in 17th century England which is being stalked by a robotic death-like figure. The locals seem to be under a strange mesmeric spell.