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.
Director
Carl Ludwig Achaz-Duisberg
Heinrich George
Direktor March
Viola Garden
Olga Lossen
Ivan Koval-Samborskyi
Ingenieur Karl Hartmann
Ilse Stobrawa
Camilla von Einerm
Gertrud Arnold
Die alte Hartmann
Paul Biensfeldt
Inspektor Bachmann
Paul Henckels
Gemeindevorsteher
DE
