Thora Birch
Liz Dunn
Four teenagers discover an underground fallout shelter thanks to a friend, who agrees to have them hide there with the door locked for a few days to escape a school trip. Yet, time passes, and their friend doesn't come back to get them.
Liz Dunn
Mike Steel
Frances 'Frankie' Almond Smith
Geoff Bingham
Dr. Philippa Horwood
DCS Tom Howard
Daisy
DI Chapman
Martyn Taylor
Minnie (as Gemma Powell)
Mrs. Dunn
Gillian
Policewoman
Solicitor
Boy in School
Doctor
Reporter
Reporter
Reporter
Director
