A general look at NASA's manned spaceflight missions. The documentary starts with the 1969 Apollo 8 mission, which marked the first 10 years of NASA's existence; the Gemini Earth orbiting missions are covered, as is the 1969 Apollo 11 moon landing mission. The benefits of manned spaceflight, such as Earth observation capability, navigation and international cooperation are discussed. There is various footage concerned with the Apollo lunar missions, including the investigation of moonrocks and general space science experimentation.
Made prior to the launch of Skylab, this film also looks at the proposed 1972 mission - the structure of Skylab, animations to illustrate the flight, experiments and processes that will be utilised onboard. Other future missions are discussed, including plans for a space station, re-usable shuttle, space tug, space base and manned expeditions to the planets.