Pressure mounts on a group of scientists as they urgently prepare to test a new top secret weapon.

Director:

Alan Bromly

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Cast

Episode cast overview, first billed only:
Nicholas Selby Nicholas Selby ... Dr. John Armstrong
Gary Watson ... Capt. Snell
Sheila Ballantine Sheila Ballantine ... Mary Armstrong
Frederick Rawlings Frederick Rawlings ... Special Branch Man
Jack Stewart Jack Stewart ... Ian Campbell
Alex Donald Alex Donald ... Installation Guard (as Alexander Donald)
Margaret St. Barbe West Margaret St. Barbe West ... Mrs. Johnson
William Kendall ... Biggs
Jack May Jack May ... Wilson
Jocelyn Page Jocelyn Page ... Miss Sheppard
Charles Gilbert Charles Gilbert ... Station Official
Blake Butler Blake Butler ... Pamell
Victor Brooks Victor Brooks ... Stevens
Gillian Raine Gillian Raine ... Miriam Kiall
John Arnatt ... Supt. Harding
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Storyline

Pressure mounts on a group of scientists as they urgently prepare to test a new top secret weapon.

Plot Summary | Add Synopsis

Genres:

Drama

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Details

Country:

UK

Language:

English

Release Date:

5 November 1961 (UK) See more »

Company Credits

Show more on IMDbPro »

Technical Specs

Sound Mix:

Mono

Aspect Ratio:

1.33 : 1
See full technical specs »

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