Siegfried, son of King Siegmund of Xanten, travels to Worms, capital of the Burgundian kingdom, to ask King Gunther for the hand of his sister, the beautiful Kriemhild.

When Kriemhild, thirsty for revenge, marries to Etzel, king of the Huns, she invites King Gunther and his court to visit them, intending to finally take the life of the man responsible of her disgrace.

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.

Hinrich, the son of a feudal German landowner, falls in love with the beautiful daughter of one of his father's serfs despite opposition from both families. But when he actually offers marriage to her, this is going too far. The return of his brother Detlev, with an unscrupulous aristocratic bride of his own and a rival claim to their father's estates, proves to be the trigger for tragedy.