X: The Unknown
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.
Genre: Horror, Mystery, Science Fiction
Director: Christopher Sutton, Joseph Losey, June Randall, Leslie Norman
Actors: Anthony Newley, Dean Jagger, Edward Chapman, Ian MacNaughton, John Harvey, Kenneth Cope, Leo McKern, Michael Ripper, Peter Hammond, William Lucas