In Reichenwalde, Brandenburg, the world's largest mobile work machine is used in opencast mining: the "Abraumförderbrücke F60" (overburden conveyor bridge). To uncover lignite, the metal colossus has been transporting up to 90,000 tons of earth per shift since the 1970s. The F60 thus takes over an essential part of the coal production, surrounding power plants are dependent on it. Our documentary introduces the gigantic steel monster and explains how the overburden bridge works.