Season 12Episode 825m
The Ark in Space (4)
1975-02-158.7 rating
The Doctor tries to protect the humans still in cryogenic suspension from the Wirrn, who are determined to use Earth as their new breeding ground.
1975-02-158.7 rating
The Doctor tries to protect the humans still in cryogenic suspension from the Wirrn, who are determined to use Earth as their new breeding ground.