Last updated 24 March 2024


Episode One

Series Episode Number: 338

World Premiere: Sat 24 Feb 1973 - 5:51pm GMT [BBC One] (United Kingdom)
First Broadcast: Sun 12 Apr 1987 - 11:00pm CDT [WTTW 11 Chicago]
Running Time: 23 minutes 27 seconds

9.10 Million (UK)


Chart Position: 32 () (UK)

Recorded on Mon 02 Oct 1972 in TC4
Archive State: PAL 2 VT



The Doctor and Jo land on a spaceship in the far future as it is attacked by Ogrons, which the human crew see as Draconians. The Doctor and Jo are taken to Earth as spies.