Can the Doctor, now in his fourth incarnation, recover from his post regenerative trauma to save the Earth from Think Tank and their plot for world domination ?
Quest roles:
John Scott Martin(Dalek Operator), Nicholas Courtney(Brig. Lethbridge-Stewart), Michael Kilgarriff(Cyberman Controller), John Levene(Sergeant Benton), Edward Burnham(Professor Kettlewell), Alec Linstead(Sgt. Osgood), Patricia Maynard(Miss Winters)