In England, an eccentric police inspector, an earnest test pilot and a spunky female reporter team up to solve the mystery of a series of test aircraft which have disappeared without a trace while over the ocean on their maiden flights; unaware, as they are, that a spy ring has been shooting the planes down with a ray machine hidden aboard a salvage vessel which is on hand to haul the downed aircraft aboard, crews and all.
Ralph Richardson
Laurence Olivier
Valerie Hobson
George Merritt
George Curzon
Roy Emerton
Frank Fox
Gus McNaughton
George Butler
Gordon McLeod
Hay Petrie
Sandra Storme
David Tree
John Longden
Ronald Adam
Patrick Aherne
Mark Daly
David Farrar
Ian Fleming
Franklin Kelsey
John Laurie
Herbert Lomas
Raymond Lovell
Gertrude Musgrove
Reginald Purdell
John Robinson
John Singer
Lewis Stringer
Jack Vyvyan
Hal Walters
Eileen Bennett
Leslie Bradley
Henry Caine
Derek Farr
Morland Graham
Sally Gray
Allan Jeayes
Colin Keith-Johnston
Gregory Stroud
Miles Malleson