Reporter vs. German spies and their new metal.
Warren Hull
as Bill MacGregor
Kay Linaker
as Sonia Manning
Wilhelm von Brincken
as Professor Werner
George Cleveland
as John MacGregor
Fern Emmett
as Aunt Mary
Edward Keane
as Newspaper Editor
Willy Castello
as Eric Bowman
John Sheehan
as Marden
Herbert Corthell
as Pete
Vince Rush
as Gruen
