X: The Unknown


Science-Fiction, Horror
1h 21min
Age rating


Dean Jagger
Dr. Adam Royston
Leo McKern
Inspector McGill
William Lucas
Peter Elliott
Edward Chapman
John Elliott
John Harvey
Maj. Cartwright
Anthony Newley
LCpl. 'Spider' Webb
Peter Hammond
Lt. Bannerman
Michael Ripper
Sgt. Harry Grimsdyke
Kenneth Cope
Pvt. Lansing
Michael Brooke
Willie Harding
Frazer Hines
Ian Osborn
Stella Kimball
Willie's Nurse
Jameson Clark
Jack Harding
Jane Aird
Vi Harding
Neil Hallett
Harry, the amorous intern
Marianne Brauns
Zena, the amorous nurse
Max Brimmell
Hospital Superintendant
Brown Derby
The Vicar
Anthony Sagar
Rear Gate Night Watchman
Edwin Richfield
Soldier Burned on Back
Frank Taylor
Constable Williams
Jack Lambert
Police Sergeant
Archie Duncan
Sgt. Yeardye


When a fissure explosively opens in an English mud flat during a military exercise there, injuring one soldier and killing another, 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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