Part FourSeries Episode Number: 541
World Premiere: Sat 13 Dec 1980 - 5:39pm GMT [BBC One] (United Kingdom)
First Broadcast: Mon 30 Mar 2015 - 8:30pm EDT [Retro TV]
Running Time: 24 minutes 54 seconds
5.40 Million (UK)Appreciation Index: 69 (UK)
Chart Position: 125 () (UK)
BBC Genome Project: see entry
As the Great Vampire begins to awaken from his long sleep, the Doctor formulates a desperate plan to defeat the ancient enemy of his people.