The aging orc shaman Ner'zhul has seized control of the Horde
and reopened the Dark Portal. His brutal warriors once again
encroach upon Azeroth, laying siege to the newly constructed
stronghold of Nethergarde Keep. There, the archmage Khadgar and the
Alliance commander, Turalyon, lead humanity and its elven and
dwarven allies in fighting this new invasion.
Even so, disturbing questions arise. Khadgar learns of orcish
incursions farther abroad: small groups of orcs who seem to pursue
a goal other than simple conquest. Worse yet, black dragons have
been sighted as well, and they appear to be aiding the orcs. To
counter Ner'zhul's dark schemes, the Alliance must now invade the
orcs' ruined homeworld of Draenor. Can Khadgar and his companions
stop the nefarious shaman in time to stave off the destruction of
two worlds?