Tests are carried out as an atom bomb is dropped on Bikini Atoll in the Marshall Islands.
Item title reads - Experiment with death.
Bikini, Marshall Islands.
C/U as a metronome ticks away the last few seconds on board the battleship "Pennsylvania", before the exploding of the atom bomb (number 4). A map shows the Bikini Atoll where the experiment is taking place. The aeroplane "Dave's Dream" starts up and takes off. M.P. Raymond Blackburn narrates the events as we see C/U's of the crew looking tense. A map shows an animation of the explosion. M/S elevated shot of U.S. sailors on board a ship, sitting on deck, shielding their eyes against the rays of the atom. C/U sailors adjust antiglare glasses over their eyes. M/S of sailors onboard ship, they turn their backs to the glare as the bomb explodes. L/S of sailors lining the rails of the ship and watching the smoke as it rises. Various good shots of the explosion and mushroom cloud.
Various shots of fire fighting ships, they play hoses onto the burning ships in the Bikini lagoon. C/U of the American submarine "Skate", totally wrecked. M/S as a missile flies into the air. Professor Joad talks about the horrors of the atom bomb and how it can destroy everything. Sir John Anderson says if the energy is harnessed properly it will have great potential, various shots of scientists at work. M/S of the explosion again.