Interior shot of officer blowing up and weighing atmospheric balloon. Exterior shot of two men taking looking out rising weather balloon. Shots of two men trying on parachute in field, opening parachute, trying to control it as wind is being caught up in it. GROUND TO AIR LS of parachute coming down. Shots from plane of parachutes opening up as men jump. Very shaky shots of parachutists floating down as seen from plane. Several shots of Avro "Lynx" and "Siskins" buzzing camera, sometimes coming quite close.