The Doctor and Codal escape from their cell and meet up with the Thal commandos who are trying to get into the Dalek base.
Quest roles:
John Scott Martin(Dalek Operator), Murphy Grumbar(Dalek Operator), Roy Skelton(Daleks (voice)), Bernard Horsfall(Taron), Michael Wisher(Magrik), Prentis Hancock(Captain), Tim Preece(Codal), Jane How(Rebec), Hilary Minster(Thal Soldier), Alan Tucker(Latep), Cy Town(Haemovore (uncredited))