Siegfried, the son of Siegmund and Sieglinde, grows up in the forest with Mime, the blacksmith. He has never learned to fear. So he manages to forge the sword Notung and use it to kill the dragon Fafner. He wins the Ring of the Nibelung and is led by the forest bird to Brünnhilde, who has been put to sleep by the god Wotan. Siegfried awakens Brünnhilde and they both fall in love with each other.