The Doctor, Jamie and Waterfield follow the Daleks to Skaro, where they discover an unforeseen consequence to their experiment.
Quest roles:
John Scott Martin(Dalek Operator), Peter Hawkins(Dalek (voice)), Murphy Grumbar(Dalek Operator), Roy Skelton(Daleks (voice)), Sonny Caldinez(Sskel), Marius Goring(Theodore Maxtible)