Recaps

The Alliance pursued the Horde through the Dark Portal while Karin used the Dragon Soul to weaken Deathwing, who was defeated by Alexstrasza. The Expeditionary Force allied with the draenei and headed toward Karabor, while Alleria fell into the void during the battle between Deathwing and Alexstrasza.

• Danath led the Alliance counterattack at Nethergarde Keep, and the arriving reinforcements pushed the Horde back as Deathwing offered Ner'zhul help in exchange for passage through the Dark Portal.
• Gul'dan stole the Scepter of Sargeras, while Windsor exposed Onyxia and the Alliance captured her after defeating the black dragons attacking the reinforcements.
• The Alliance commanders agreed to pursue the Horde through the Dark Portal, and Khadgar stopped Grommash's Warsong Clan from escaping through a bomb that Ner'zhul had supplied.
• Danath led the Alliance Expeditionary Force into Draenor as Ner'zhul and Gul'dan split forces, with Gul'dan carrying the scepter toward Karabor and Dentha left to defend Hellfire Citadel.
• Karin used Onyxia's blood to strengthen the Dragon Soul, then helped Kurdran's forces defeat Blackhorn's dragons before Gruul killed Deathwing's wyrmlings and challenged him.
• Karin trapped Deathwing with the Dragon Soul and weakened his armor, allowing Alexstrasza to defeat him after a day and a night of fighting.
• Ner'zhul used Ascendance against pursuing Wildhammer dwarves and ordered Gul'dan to lead the Horde toward Auchindoun, while Danath and Khadgar joined forces with Nimreyan, who offered to guide them toward Karabor.
• Alleria learned that the Horde had brought black dragons to the Blade's Edge Mountains, then saw Deathwing fighting a red dragon before the collapsing land pulled her into the void and she lost Thas'dorah.