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.
Maj. Charles Hammond
Tony McVane
Kay Lawrence
Mr. Barrett
Jenkins
Viking First Mate
Karl
Blenkinsop, Hammond's Butler
Air Marshal Gosport
The Baron
Stage Door Keeper
Daphne
R. Mackenzie
John Peters, a Pilot
Pollack - Aviation Engineer
Officer
John - Factory Watchman
Viking Bo'sun
Air Ministry Officer
Inspector
Newspaper Editor
Mattie - Fisherman
Northern Salvage Company Manager
Barmaid
Pilot
Pilot
Newspaper Boy
Foreign Agent
Police Sgt
Cornish Car Driver
Minor Role
Minor Role
Minor Role
Minor Role
Minor Role
Minor Role
Minor Role
Minor Role
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Minor Role