Staff and students at a rural school react to a warning of an imminent nuclear attack, not knowing whether it is real or a mistake.
Frank Perry
Director
Jane Connell
Mrs. Maxton - the Dietician
William Daniels
Mr. John Calkins - the School Principal
James Frawley
Truck Driver
Richard Hamilton
JoAnn's Father
Kathryn Hays
Mrs. Betty Forbes - the Secretary