A series of unexplainable accidents befall the people and companies responsible for developing the world's first supersonic airliner. A British agent is sent to investigate and with the help of another agent uncovers a plot masterminded by Carl Petersen who … Richard Johnson, Daliah Lavi, Beba Lončar, James Villiers, Vanessa Howard, Maurice Denham, Robert Morley Added on Amazon Prime 2023-08-21.