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.

Directed by: Andrew Marton
Written by: Julian Zimet & Jon Manchip White
Runtime: 96 minutes
Tagline: Thank God it's only a motion picture!
Cast:
Dana Andrews Dana Andrews
Dr. Stephen Sorenson 
Janette Scott Janette Scott
Dr. Maggie Sorenson 
Kieron Moore Kieron Moore
Dr. Ted Rampion 
Alexander Knox Alexander Knox
Sir Charles Eggerston 
Peter Damon Peter Damon
John Masefield 
Sydna Scott Sydna Scott
Angela