The Nibelungs - To this day, Germany's greatest legend still has modern treasure hunters under its spell. With the help of ancient scripts and divining rods, they set out in search of Siegfried's legendary golden treasure. The magical treasure, which is said to have been sunk in the Rhine, includes gold and silver, in addition to a cloak of invisibility.What's the story behind the myth? Scientists are trying to uncover the myth's origins. The trail leads to Scandinavia where an archaeologist is looking for one of the saga's oldest traces. A blacksmith tries to reforge Siegfried's sword using an ancient technique and conducts an experiment with the weapon. The discovery of bones provides an explanation for the dragon. Historians and linguists give insight into who the Nibelungs were and what the treasure might have looked like.