Doctor Who The Ark in Space Part Four

Saturday, 15th February 1975 5:30PM BBC 1 (24 mins)

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The Ark in Space – Part Four Synopsis

Trapped by the Wirrn, who threaten to devour the human race, the Doctor and his friends are forced into one last terrible gamble.

Episode Order

Episode 389 from Doctor Who
Episode 8 of 20 from Season 12
Episode 4 of 4 from The Ark in Space

Story Order

Story 76 from Doctor Who
Story 2 of 5 from Season 12

Next/Previous

Previous: The Ark in Space - Part Three
Next: The Sontaran Experiment - Part One

Characters

Fourth Doctor
Sarah Jane Smith
Harry Sullivan
Vira
Noah
Rogin

Credits

Doctor WhoTom Baker
Sarah Jane SmithElisabeth Sladen
Harry SullivanIan Marter
ViraWendy Williams
NoahKenton Moore
RoginRichardson Morgan
Wirrn OperatorStuart Fell
Wirrn OperatorNick Hobbs

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