Dr. Steven Sorenson plans to tap the geothermal energy of the Earth's interior by means of a thermonuclear device detonated deep within the Earth. This experiment causes a crack to form and grow within the Earth's crust, which threatens to split the earth in two if it is not stopped in time.

• DirectorAndrew Marton
• Release15 April 1965
• Genre
  Science Fiction / Action
• Duration1h 36m
• Budget$873,000
• Revenue?
• Rate
  

  5.7
  65 reviews
• Productions

  Security Pictures, Paramount Pictures