The planet Skaro, the distant past. The Time Lords divert the Doctor, Sarah Jane and Harry to this war-torn world, and give the Doctor a mission: the evil of the Daleks is about to be born here, and the Doctor is to try to ensure they evolve into less lethally aggressive beings - or, failing that, to avert their creation altogether. But has even the Doctor the right to commit genocide?
Quest roles:
John Scott Martin(Dalek Operator), Dennis Chinnery(Sylvest), Terry Walsh(Guard (uncredited)), Michael Wisher(Ranjit (voice, uncredited)), Guy Siner(Ravon), John Franklyn-Robbins(Time Lord), Peter Miles(Nyder), Richard Reeves(Kaled Leader)