Wagner's famous musical "The Ring of the Nibelung" tells the touching love story of the goddess Brünnhilde and Siegfried. At the end of the twilight of the gods, the Ring of the Nibelung was thrown into the Rhine River, but the matter is not over. The defeated enemy is already ready to move in the darkness, and the world without the gods is in chaos. The ring is found again, so who will save the world?