The program opens with film clips of the effects of the bombing of Hiroshima. Dr. Donald Andrews, chemistry professor at Johns Hopkins University, says that man has learned how to harness and control the atom's energy in such projects as atomic submarines and power plants, but we can not yet harness or control hydrogen, the newest source of nuclear power. To do that, machines need to supplement man's brain, offering "automatic control" or cybernetics. Examples of this include analog machines that regulate single functions, like James Watts' fly ball governor to control steam to the engine (demonstrated in animated film), thermostats that work on a feedback loop, servoengines that correct the course of a ship, and automated pilots on planes. Dr. Andrews then demonstrates thermodynamics, which studies the relations between heat and motion, and shows visible and audible evidence of a gas using dry ice. He defines entropy as the degree of randomness in a situation expressed by probabilities. Claude Shannon was the first person to see the parallel between entropy and the theory of information, which makes possible more complex automatic control devices. Self-regulating machines still need human monitoring, but digital information machines, or computers, can handle more complex situations, such as reacting to emergencies. A filmed narrative describes IBM's Model 705 equipment and statistics. Dr. Andrews says that computers will become the instruments of overall control. Cartoons show the statistics, promises, and fears of mechanization in business, industry, and government, concluding that by 1965, the United States, with a population of 190,000,000 will require a 50% increase in production. Dr. Andrews also predicts that in the future automatic control machines will make possible automatically steered cars, continuous television with an on-request program selector for shows in full color and 3-D, interplanetary transportation within 100 years, and modification of conditions on other planets by robots for colonization of space. The program concludes with a brief film of the launching of an artificial earth satellite placed in orbit by a three-stage rocket as America's contribution to the 1957-58 International Geophysical Year.