This film shows the halls of the Borsig locomotive factory in Berlin with the noise of the machines and riveting hammers. Iron and steel plates, bundles of pipes of all diameters are formed. Huge locomotive boilers, lifted by cranes, move through the hall. They connect with the huge steel wheels, glittering steel parts are inserted into the engine of the locomotive being built. Finally, the giant is on the rails, the class 05 express locomotive of the Deutsche Reichsbahn.