Infinite Dragons try to stopping Arthas from Culling the plague from Stratholme. This episode is the beginning of the Arthas metamorph that will carry him to Northrend and become the Lich King.
Players, guided by the bronze dragons, have the mission to do not allow the infinite Dragons to take control of this event. What could happen to the Azeroth history if Arthas dies by the hands of the infinite Dragons? How could the history change?
I know it's a terrible silly question, but i beleieve that everyone of us was thinking about that during his run into this dungeon.