Episode 4
Series Episode Number: 261World Premiere: Sat 21 Feb 1970 - 5:15pm BST [BBC One] (United Kingdom)
First Broadcast: Tue 30 Sep 2014 - 8:30pm EDT [Retro TV]
Running Time: 25 minutes
8.20 Million (UK)
Appreciation Index: 60 (UK)Chart Position: 46 () (UK)
Recorded on Mon 05 Jan 1970 in Television Centre 1
Archive State: PAL Restor
Fearful of a war breaking out between the Silurians and mankind, the Doctor attempts to make peace between the races. But there are those on both sides unwilling to listen.
Home Region: