Terence Young (Director)
Jack Warner
Inspector Peterson
Nadia Gray
Kara Niemann
John McCallum
Dr. Nils Ahlen
Anthony Dawson
Sven Nystrom
Mary Laura Wood
Helga Ahlen
Naima Wifstrand
Baroness Erland
Norman MacOwan
McTavis, ferry pilot
Christopher Lee
Det. Holt
Alfred Maurstad
Trerik
Martin Boddey
Chief of the Lost Valley
Ewen Solon
Det. Anderson
Gösta Cederlund
Prof. Lind
Sten Lindgren
Director-General of the Reasearch Institution
Peter Blitz
Anders
Fritiof Billquist
Colonel Strand (uncredited)
Sarah Crawford
Noma (uncredited)
Molly Warner
Frau Lind (uncredited)
George Willoughby
Bertil (uncredited)
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A Norwegian scientist builds a device that can convert sound waves into electrical energy. However, the machine is stolen by the scientist's wife and assistant, who head across the frozen tundra towards Russia. A police inspector and a local girl team up with the scientist to help recover the device.
