In the tunnels beneath Ta, the Doctor, Jamie and Zoe are rescued from their cell by Milo Clancey. They head to the surface with the pirates in hot pursuit.
See all episodes from Doctor Who
See all broadcasts of Episode 4 (1)
Give it a go now!
See the behind-the-scenes videos, interviews, clips and other goodies!
Rebuild, rewire and recode your own Dalek in the new desktop game!
Sign in to the BBC, or Register