The Nibelungen – to this day, the German legend still fascinates modern adventurers. With the help of old writings, metal detectors and dowsing rods, they search for Siegfried's gold treasure. A manuscript from the 13th century leads to the Rhine, to the lost village of Lochheim. An archaeologist finds the oldest reference to the saga in Scandinavia. A treasure may exist - but does the trail lead to gold? The film asks: What is fact, what is fantasy? Even behind the most unbelievable elements of the saga are amazing facts. A blade expert forges Siegfried's magic sword using ancient instructions. Shards of bone provide an explanation for the legendary dragon. Historians and linguists explain who the Nibelungen were and how the treasure might have looked. Ultimately, the question remains whether the legendary gold has been found & is lying anonymous in a museum - or whether it has been awaiting discovery for over a thousand years.