The engineer Karl Hartmann invents a new, gigantic brown coal excavator. He discovers that there are large deposits below his home country and decides to use the excavator there.

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Main Cast: Heinrich George, Viola Garden, Ivan Koval-Samborskyi, Ilse Stobrawa, Gertrud Arnold, Paul Biensfeldt, Paul Henckels, Ilse Vigdor

Director: Carl Ludwig Achaz-Duisberg

Writer: Carl Ludwig Achaz-Duisberg

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Cinematographer:

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