At the Yucca Flats proving grounds at Nevada a plastic balloon carries aloft the largest the largest Atom Bomb ever to be tested in the United States. As H-hour approaches plastic sun glasses are dawned. Not only engineers who are conducting the test but also by news men and camera men. Seconds tick away, 5-4-3-2-1 blast from the bomb. Its an awesome display of nuclear might, trees burst into flames 3-miles away and windows rattle 300-miles away in California, more than 20 minutes after the blast. An airline pilot 1,000-miles away saw the blast Establishing shot - In the dessert a balloon is lifting up. MCUS - An engineer sitting at a panel of controls and is looking at TV monitors. CUS - Two engineers putting on very dark sunglasses and the press has their glasses on already. MCUS - The press cameramen behind their cameras with their eyes covered and their heads down. MS - A Silhouette of a man watching the blast take place. (This is a cool shot)