A jumbo jet leaves New York. After the plane has departed, a note is found in the first class lounge with an ominous message left by a passenger threatening to kill some of the passengers.

At first it is thought to be a sick joke, but soon a man posing as a priest and a stewardess are killed. It is up to the captain to find the killer before the body count increases.

Starring Farrah Fawcett, Sonny Bono and Robert Stack