Summary
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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Cast
Dean Jagger
Dr. Adam Royston
Leo McKern
Inspector McGill
William Lucas
Peter Elliott
Edward Chapman
John Elliott
John Harvey
Maj. Cartwright
Michael Ripper
Sgt. Harry Grimsdyke
Anthony Newley
LCpl. 'Spider' Webb
Peter Hammond
Lt. Bannerman
Kenneth Cope
Pvt. Lansing
Frazer Hines
Ian Osborn
Neil Wilson
Russell
Jameson Clark
Jack Harding
Neil Hallett
Harry, the amorous intern
Norman MacOwan
Old Tom
Edwin Richfield
Soldier Burned on Back
John Stone
Gerry
Frank Taylor
Constable Williams
Jack Lambert
Police Sergeant
Archie Duncan
Sgt. Yeardye