Draenor, the homeworld of the orcs, is being torn aside by a mysterious power referred to as fel magic. An orc warlock referred to as Gul’dan unites the orc clans and types the Horde, and creates a portal to the world of Azeroth. The orcs start to make use of fel magic to empty the life out of captive draenei to be able to maintain the portal. As soon as it’s operational, Gul’dan leads a small warband to seize prisoners on Azeroth and sacrifice them to convey the remainder of the Horde by way of the portal. Regardless of their doubts, Durotan, the chieftain of the Frostwolf Clan, his pregnant mate Draka, and his buddy Orgrim Doomhammer be part of this preliminary warband. Whereas crossing by means of the portal, Draka goes into labor. When the orcs arrive on Azeroth, Gul’dan assists Draka with giving start, however the child is stillborn. Gul’dan then drains the life out of a close-by deer to revive and infuse fel magic into the child, which Durotan later names Go’el.
The orcs raid a number of settlements all through Azeroth. Anduin Lothar, the navy commander of the human forces within the Stormwind Kingdom, appears over a number of the males that had been killed, and finds a trespassing mage named Khadgar, who explains that he was investigating the lifeless our bodies as a result of they contained traces of fel magic. Khadgar persuades Stormwind’s king, Llane Wrynn, to seek the advice of Medivh, the fabled Guardian of Tirisfal, and Llane sends Anduin and Khadgar to Medivh’s stronghold, Karazhan, to tell him of the fel magic’s presence on Azeroth. Within the Karazhan library, a ghostly shadow leads Khadgar to a mysterious ebook, which he takes.
Anduin, Khadgar and Medivh be a part of a scouting group following traces of fel magic, however are ambushed by orcs. Medivh makes use of a spell to kill a lot of the orcs, and the Horde’s warchief, Blackhand, flees, together with Durotan and Orgrim. Khadgar restrains the half-orc often called Garona, and the troopers take her prisoner. King Llane frees Garona in change for loyalty to Stormwind, and she or he leads the people to spy on the orc camp, the place they be taught of Gul’dan’s plan to deliver the Horde to Azeroth. In the meantime, Durotan realizes that the fel magic is answerable for the destruction of Draenor, and if Gul’dan just isn’t thwarted, Azeroth will undergo the identical destiny. Regardless of Orgrim’s objections, Durotan invitations Llane to a secret assembly in order that the Frostwolf Clan and the people can unite to defeat Gul’dan. Whereas learning the guide he took from Karazhan, Khadgar learns that Gul’dan couldn’t have opened the portal on his personal; he had assist from somebody on Azeroth. He’s confronted by Medivh, who burns Khadgar’s analysis when Khadgar gives to assist him along with his work.
The Frostwolf Clan meets with the people to barter an alliance, however the group is ambushed by Blackhand. Because the people retreat, Medivh kinds a magical barrier to guard them, however Lothar’s son Callan is separated from the remainder of the group and killed by Blackhand. Medivh is severely weakened, and Garona and Khadgar take him again to Karazhan to get better. After noticing Medivh’s eyes shine inexperienced, exhibiting that he’s contaminated by fel magic, Khadgar returns to his former dwelling, Dalaran, to hunt assist from a bunch of human magi known as the Kirin Tor. Alodi, a legendary mage and the true identification of the shadow who led Khadgar to the e book, reveals that Medivh has certainly been corrupted by fel magic and possessed by an unknown demon. On the orc camp, Blackhand purges the Frostwolf Clan. Orgrim helps Draka to flee, and she or he sends Go’el down a river in a basket, however is then discovered and killed by one other orc. Durotan challenges Gul’dan to Mak’gora, a conventional orcish duel to the loss of life for management of a clan – on this case, all the orcs. In the course of the combat, Gul’dan violates the honorable fight guidelines by draining the life out of Durotan along with his magic, killing him and incomes the disapproval of the orcs watching, and he empowers Blackhand with the identical magic. Medivh, now in a half-demonic state, begins to open the portal to Draenor, and Gul’dan sacrifices the captured human villagers to permit the remainder of the Horde to enter Azeroth.
Llane leads the human military in an assault on the orc camp, whereas Anduin and Khadgar struggle Medivh and destroy the demon that had begun to manifest on the surface. Medivh is left mortally wounded, and makes use of the final of his power to shut the portal to Draenor and as a substitute open a portal to Stormwind, permitting Llane to evacuate many of the freed prisoners. When Medivh ultimately dies, the portal closes, leaving Llane, Garona and a small variety of human troopers to battle the orcs. Llane secretly orders Garona to kill him, bringing her honor among the many orcs and placing her able of energy to carry peace between the 2 races. Garona reluctantly does so, and is welcomed into the Horde by Gul’dan. Because the orcs have fun, Anduin arrives to retrieve King Llane’s physique and discovers Garona’s knife within the physique, realizing that it was she who had killed their king. Blackhand challenges Anduin to Mak’gora, and Anduin shortly disposes of him. Towards Gul’dan’s calls for, the orcs, certain by custom, enable Anduin to depart with Llane’s physique. At Llane’s funeral in Stormwind, the leaders of the opposite human nations, together with the excessive elves and dwarves, proclaim an alliance in opposition to the orcs and rally behind Anduin because the chief of the Alliance forces. Elsewhere, Orgrim takes one among Durotan’s tusks to at some point give to Go’el, and the basket containing Go’el is discovered by a human.