His brutal warriors once again encroach upon Azeroth, laying siege to the newlyconstructed stronghold of Nethergarde Keep. There, the archmage Khadgar and theAlliance commander, Turalyon, lead humanity and its elven and dwarven allies infighting this new invasion. Even so, disturbing questions arise. Khadgar learns oforcish incursions farther abroad: small groups of orcs who seem to pursue a goalother than simple conquest. Worse yet, black dragons have been sighted as well, andthey appear to be aiding the orcs. To counter Ner'zhul's dark schemes, the Alliancemust now invade the orcs' ruined homeworld of Draenor.