The Doctor, Ace, K9 and Cedric are taking part in a game show to see who can win The Ultimate Challenge — the biggest game show in the universe. The contestants are forced to answer fairly basic questions about space, with severe punishments if they get it wrong.
Berry-Anne Billingsley
Director, Writer
Lambros Atteshlis
Writer
Sylvester McCoy
The Doctor
Sophie Aldred
Ace
Stephen Johnson
Cedric
John Leeson
K9 (voice)
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