In the last mission of the Scourge campaign, Kel'Thuzad need to summon the powerful demon Archimonde. The human will attack from all sides and try to interrupt the summoning. The task is not one of the easiest. Every couple of minutes some reinforcement will arrive. There are also some land mines in the shop. Then in the last five minutes, the Infernals will fall from the skies to help the player in this dark quest. Yes, they are the falling green stars from the intro movie. A powerful melee units with a lot of hit points. After the summoning is complete, there is a cinematic with the destruction of Dalaran. The human alliance lies in ruins, or scattered along the lands. But the real and glorious adventure is just about to begin.