Alongside Sarah and Harry Sullivan, the Fourth Doctor tries to avert the genesis of the Daleks and in deep space he faces Cybermen, Vogans and the deadly Wirrn!
Share this with
This programme is not currently available on BBC iPlayer
There are no upcoming broadcasts of this programme
Tue 29 Feb 2000 18:00
BBC Two except East, South East, Yorkshire
All previous episodes
See all from Season 12
See all clips from Season 12
Doctor Who’s very first director tells us why the job is no easy business.
Check out what one of our team created using clips, images and audio from the asset packs
Check out the best of the latest news and photos from our Twitter and Instagram accounts!
Ten teasers to see how well you know the guest stars!
More levels! More adventure! And it’s now available on tablets!
See all galleries from Season 12