Spectacular scenes of army's explosion of 320,000 pounds of TNT in a test to determine how underground fortifications withstand direct hits. Intricate series of cables lead away from blast site, to measure the forces of destruction. Establishing shot - Army engineers plot the desert in Utah, they have plans to make a man made earthquake MDOS, dull in imagery and contrast MCUS - Two army engineers one sitting a cranking on a box the other is standing behind him waving a flag, and behind the two of them sits an Old Woody station wagon CUPS - A maze of cable that will measure the shock wave and how it is handled by certain types of construction MS - Camera men with their cameras set up in the desert so they can record this moment in history MCUS - Military men waiting for the explosion to go off CUS - One of the engineers pulling the switch for the explosion MLS - Explosion taking place LS - The explosion in the distance and spectators watching this event take place