Colony in Space: Episode Six 1971
7.1 212 The Doctor and the Master are taken into the Primitive city, where the Master hopes to find the doomsday weapon, while Dent forces the colonists to leave the planet even though their ship is likely to explode.
Runtime: 25
Starts: Jon Pertwee, Roger Delgado, Nicholas Courtney, Katy Manning
Director: Michael E. Briant