England: The 20th Century. After they return from England after their Antarctic ordeal, Chase tries to eliminate the Doctor and Sarah Jane, but they escape and track him down at his estate, where he is preparing to open the Krynoid pod.
Elenco:
William Hartnell
,
Patrick Troughton
,
Jon Pertwee
,
Tom Baker
,
Peter Davison
,
Colin Baker
,
Sylvester McCoy
.