Sci-fi drama. The Doctor takes Bill to a spectacular city on a distant planet - but where are the colonists? A band of 'cute' droids hold the deadly answer. Show more
Discover 11,128,835 listings and 279,742 playable programmes from the BBC
Sci-fi drama. The Doctor takes Bill to a spectacular city on a distant planet - but where are the colonists? A band of 'cute' droids hold the deadly answer. Show more