Heston plays the pilot of a commercial airplane that is hijacked by maniac Brolin, who orders, through a lipstick message on the bathroom mirror, that the plane be taken to Moscow. His reasons for picking that particular destination are never made clear, and once he makes it he's instantly
killed by Russian soldiers. In addition to the suspense created by the main plot line, a number of developments occur in the personal lives of the passengers and staff. A pregnant woman just happens to go into labor during the incident, and tensions run high among the members of a love triangle,
as hostess Mimieux, who had an affair with Heston sometime in the past, is now seeing...