Part FourSeries Episode Number: 671
World Premiere: Wed 26 Oct 1988 - 7:34pm GMT [BBC One] (United Kingdom)
Running Time: 24 minutes 36 seconds
5.00 Million (UK)Appreciation Index: 72 (UK)
Chart Position: 96 () (UK)
The streets of East London shake under a civil war being fought between the Daleks and the Doctor forces the Dalek Emperor to reveal himself to be Davros, waging one more battle.