Episode 2
Series Episode Number: 255World Premiere: Sat 10 Jan 1970 - 5:15pm BST [BBC One] (United Kingdom)
First Broadcast: Sun 17 Sep 2017 - 4:30pm EDT [Retro TV]
Running Time: 24 minutes 21 seconds
8.10 Million (UK)
Chart Position: 57 () (UK)
Recorded in BBC Training Centre,
Archive State: 16mm Colou
A recovered Doctor escapes the hospital and joins UNIT in their investigation. Meanwhile, Channing directs one of his Auton servants to recover a meteorite.