span style color: rgb 四八, 四八, 四八 font-family: 微软雅黑 font-size: 一四px A series of unexplainable accidents befall the people and companies responsible for developing the world s first supersonic airliner SST一 A British agent is sent to investigate and with the help of another agent uncovers a plot masterminded by Carl Petersen who stands to gain eight million pounds if the aircraft is not ready by a certain date The evil Petersen has developed a number of quot robots quot actually rather beauti irls with quot electronic brains quot to help him sabotage the SST一 project by means of quot infrasound quot extreme low frequency sound waves which can be directed at people or objects with devastating results span br