Part ThreeSeries Episode Number: 540
World Premiere: Sat 6 Dec 1980 - 5:40pm GMT [BBC One] (United Kingdom)
First Broadcast: Mon 30 Mar 2015 - 8:00pm EDT [Retro TV]
Running Time: 24 minutes 13 seconds
4.40 Million (UK)
Chart Position: 145 () (UK)
Recorded on Thu 29 May 1980 in Television Centre 6
Adric is taken prisoner by the three vampire rulers. The Doctor discovers that they are facing a mighty foe from Time Lord history.