Close up shot of picture of Earth with an orbit line drawn around it. Camera tilts up, following line. Dr. Wernher Von Braun’s voice is heard. Camera zooms out to show full picture of earth with orbit of spacecraft around it. Cut to shot of Von Braun as he speaks and looks at slide on projector. He is discussing the details of the orbit to the US air force members. Shot of a chart on slide showing four separate orbits of Earth. Fades to a close up of first orbit, showing the different times and locations of each space station. Fades to other orbit pictures as Von Braun talks.