The Aeromedical Research Laboratory at Holloman Air Force Base in New Mexico is the subject here, filmed as it works through the practical problems of putting a human body into space. Cameras show primates being trained and cared for ahead of experiments in decompression, radiation exposure, blood analysis, and experimental medicine, the animals standing in for astronauts before anyone risks a crew. The film moves through deceleration tests, pulmonary studies, and mock space capsule runs, showing the equipment and procedures the lab used to measure what acceleration, altitude, and confinement actually do to a living body. By 1967 this research had become a direct input into astronaut safety programs, and the film frames the lab's day-to-day work, training runs, blood draws, instrument checks, as the unglamorous groundwork behind later spaceflight. There is no narrative arc beyond the facility's routine; the point is procedural, a record of methods and machines rather than a story of individual scientists or missions.