The dead planet is not uninhabited after all. The Doctor is about to meet what will become his greatest enemies. And he and his crew are dying of radiation sickness.
Quest roles:
Peter Hawkins(Dalek (voice)), Gerald Taylor(Vega Nexos), David Graham(Kerensky), Robert Jewell(Dalek Operator), Kevin Manser(Dalek Operator), Michael Summerton(Dalek Operator)