Last updated 09 January 2020

Episode Four

Episode Four

Series Episode Number: 223

World Premiere: Sat 23 Nov 1968 - 5:14pm BST [BBC One] (United Kingdom)
Running Time: 24 minutes 18 seconds

6.40 Million (UK)

Appreciation Index: 51 (UK)

Chart Position: 73 () (UK)

Recorded on Fri 11 Oct 1968 in Lime Grove D
Archive State: Missing

Trapped by Vaughn's men at International Electromatics, the Doctor requests help from the Brigadier and UNIT, the United Nations Intelligence Taskforce.

A UFO is delivering cocoons to the electronics firm – but what is inside them?