The brash chieftain of the Warsong clan, Grommash Hellscream never fled from a fight. He bore the fabled axe Gorehowl, its grooved blade ringing with each swing, and led his raiders into battle. Yet for all his prowess, Grommash lacked restraint. When his relentless attacks finally cost him dearly, he refused to die, overcoming devastating odds and wresting vengeance from absolute defeat. His ferocity earned renown throughout Draenor, and Grommash became a legend. His son, Garrosh, was born in the shadow of a giant.
Prior to a great gathering of orc clans, Grommash was approached by a stranger. This mysterious advisor, who quickly earned his trust, was the grown-up version of the boy in Grommash's shadow: Garrosh Hellscream. He warned Grommash about a traitor who schemed against the orcs to enslave them to demon masters. Grommash used the information to expose the plot, catapulting himself into position to unite almost all of the orc clans. With his charisma and clout, Grommash forged an Iron Horde free to seize its own destiny. Now he sets out to conquer the stronghold of Shattrath in Talador, the draenei's holy temple in Shadowmoon Valley, and the Frostwolf holdouts in Frostfire Ridge. If his campaign succeeds, Draenor will be the first of many worlds to fall to the might of the Iron Horde.