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
All previous episodes
See all from Season 12
See all clips from Season 12
More levels! More adventure! And it’s now available on tablets!
See all galleries from Season 12