Last updated 24 March 2024


Part Four

Series Episode Number: 545

World Premiere: Sat 24 Jan 1981 - 5:09pm GMT [BBC One] (United Kingdom)
First Broadcast: Wed 1 Apr 2015 - 8:30pm EDT [Retro TV]
Running Time: 24 minutes 53 seconds

7.80 Million (UK)

Appreciation Index: 59 (UK)

Chart Position: 69 () (UK)

Recorded on Fri 03 Oct 1980 in Television Centre 1



With the void collapsing around them, time is running out. Rorvik ignores the Doctor's warnings and takes a desperate gamble which could have fatal consequences.