Mankind's plans for further expansion into outer space in the year 2021 are threatened by an unseen alien force.

Director:

Writers:

(novel),
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Cast

Episode cast overview, first billed only:
Walter Rilla ...
Dr. Werner
Ursula Danera ...
Helga von Horstmann
Launce Maraschal ...
Crandall
Carl Bernard ...
Vernon-Cavendish
Fred Johnson ...
Sir Alton Berkeley
Terence Alexander ...
Neil Harrison
Stanley Zevic ...
Balatov
Andy Ho ...
Hsuan
Paul Bahadur ...
Dhevu
Ursula Howells ...
Libby Harrison
Willoughby Goddard ...
Professor Mark Harrison
Kevin Stoney ...
Dr. Wooley
Barry Letts ...
Dr. Luden
Bettina Dickson ...
Waterson
Ronan O'Casey ...
McAllister
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Storyline

Mankind's plans for further expansion into outer space in the year 2021 are threatened by an unseen alien force.

Plot Summary | Add Synopsis

Plot Keywords:

based on novel | See All (1) »

Genres:

Drama

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Details

Country:

Language:

Release Date:

16 January 1955 (UK)  »

Company Credits

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Technical Specs

Runtime:

Sound Mix:

Aspect Ratio:

1.33 : 1
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