X: The Unknown

It rises from 2000 miles below the earth to melt everything in its path!

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Army radiation experiments awaken a subterranean monster from a fissure that feeds on energy and proceeds to terrorise a remote Scottish village. An American research scientist at a nearby nuclear plant joins with a British investigator to discover why the victims were radioactively burned and why, shortly thereafter, a series of radiation-related incidents are occurring in an ever-growing straight line away from the fissure.

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Creators

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Leslie Norman

director

Jimmy Sangster

writer

Cast

Dean Jagger actor Leo McKern actor William Lucas actor

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Edward Chapman actor John Harvey actor

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Michael Ripper actor Anthony Newley actor

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Ian MacNaughton actor

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Peter Hammond actor Kenneth Cope actor

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Michael Brooke actor Frazer Hines actor

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Neil Wilson actor

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Stella Kimball actor

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Jameson Clark actor

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Jane Aird actor

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Neil Hallett actor

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Marianne Brauns actor

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Max Brimmell actor

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Brown Derby actor