The plot of a story is the sequence of events that leads up to the main event. It is the development of the story and unfolds to lead to the other events where all events are connected to one another.
Richard Wagner's musical drama "Der Ring des Nibelungen (The Ring of the Nibelung)" is a German story based on the Norse and other ancient German myths. The story follows a hero and his growth to adulthood. And the plot of the drama centers around a magical ring that can grant the holder the power to rule the world.