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.
Heinrich George
as Direktor March
Viola Garden
as Olga Lossen
Иван Коваль-Самборский
as Ingenieur Karl Hartmann
Ilse Stobrawa
as Camilla von Einerm
Gertrud Arnold
as Die alte Hartmann
Paul Biensfeldt
as Inspektor Bachmann
Paul Henckels
as Gemeindevorsteher
Ilse Vigdor
as Zofe
