Episode One
Series Episode Number: 330World Premiere: Sat 30 Dec 1972 - 5:51pm GMT [BBC One] (United Kingdom)
First Broadcast: Sun 4 Sep 1983 - 11:00pm CDT [WTTW 11 Chicago]
Running Time: 24 minutes 39 seconds
9.60 Million (UK)
Chart Position: 41 () (UK)
Recorded on Mon 27 Nov 1972 in TC1
Archive State: PAL 2 VT
In search of the Doctor, an antimatter creature attacks UNIT and the Doctor is forced to send an SOS to his people, the Time Lords, but they have troubles of their own.
Home Region: