Lords of War: Part Two

Before you can harbor any hope of defeating the Iron Horde, you must first understand what—and whom—you’re up against. Blizzard's five-part series Lords of War introduces you to some of the major players in the campaign on Draenor—beginning with the sadistic Kargath Bladefist, leader of the Shattered Hand, and continuing today with the mighty Grommash Hellscream, chieftain of the Warsong clan.

Source:

http://us.battle.net/wow/en/blog/15663731/lords-of-war-part-two-grommash-9-5-2014