Recaps

Medivh manipulated Thrall and Jaina while Arthas uncovered the curse on House Menethil and joined Baron Rivendare to defend Lordaeron. After Thrall and Sylvanas turned against the fortress, Medivh moved to seize Arthas, but Kel'Thuzad intervened and summoned Arthas to Andorhal.

• Medivh pushed Thrall to rule the Orcs through fear, while Jaina survived his dungeon test and was recruited to lead the Peace Dove.
• Thrall killed Orgrimmar, formed the Kor'kron, and began uniting the Orcs, as Medivh learned Kel'Thuzad was hiding in Andorhal.
• Arthas and Robbie reached Lordaeron and discovered the suffering of its people, King Terenas’s plans for the Orcs, and Uther’s effort to remove Baron Rivendare.
• Robbie entered Undercity and found the Runes of the Dead, which he and Arthas later combined with Holy Light runes to gain new powers.
• Robbie fought Uther at the palace, weakened him, and struck Missrael as she teleported Uther away.
• Arthas and Robbie joined Baron Rivendare at Blackmist Fortress, where Arthas trained against Orcs and received Holy Light's Vengeance.
• Thrall enlisted Saurfang and Sylvanas against Rivendare, but Arthas defeated Saurfang and Robbie turned the rangers’ arrows back on them.
• Medivh tried to capture Arthas for his bloodline, but Kel'Thuzad intervened, sent Thrall and Sylvanas away, and summoned Arthas to meet him in Andorhal.

Thrall’s Fel-corrupted rise brought Lordaeron to ruin as Arthas and Robbie uncovered Kel'Thuzad’s legacy and the runes’ power. The arc left Hearthglen in Barthilas’s hands after Tirion’s secret bargain with the Orcs collapsed, while Arthas continued seeking a way to master the runes and confront Medivh.

• Medivh revived Saurfang on the Fel altar, then learned Kael'thas had sought Kel'Thuzad’s help to impress Jaina and ordered the captive prince to kill the mage.
• Thrall and Grommash Hellscream fought for control of the Orcs, but Sylvanas and Saurfang killed Thrall, allowing Broxigar’s evil soul to emerge and corrupt Sylvanas.
• The resurrected Thrall slaughtered the Warsong Clan, seized control of the Orcs, and killed King Terenas after Medivh urged Lordaeron’s people to flee west.
• Medivh searched Dragonbone Plain for Frostmourne and triggered a volcanic eruption, while Arthas and Robbie taught runes to the Undead and Kel'Thuzad passed his spirit crystal and leadership to Arthas before dying.
• Uther, Thrall, and Sylvanas’s forces were overwhelmed by the Undead at Andorhal, and Jaina teleported the commanders to safety as Arthas watched from afar.
• Experiment 335 taught Barthilas to combine the Scourge Rune with a Holy Light Rune, awakening his power, while Arthas discovered that a fourth Holy Light Rune had appeared in Hearthglen.
• Tirion Fordring fought Eitrigg, survived a collapse through Barthilas’s healing, and later secretly negotiated to surrender Hearthglen in exchange for his family’s safety and a share of the spoils.
• Barthilas exposed Tirion’s deal, defeated Eitrigg, and claimed Hearthglen for himself, forcing Tirion to flee after Barthilas threatened his son.

Barthilas's stand at Hearthglen ended with his death, and Thrall's forces turned toward Stratholme while Robbie and Arthas worked to defend it. The siege brought dragons and Dalaran into the conflict, and it left Thrall's Orcs suffering heavy losses against Stratholme's defenses.

• Tirion asked Dathrohan for help rescuing Eitrigg, but Dathrohan revealed his alliance with Balnazzar and his willingness to sacrifice Hearthglen.
• Uther led Paladins and Orcs to Hearthglen, where Barthilas killed hundreds and defeated Uther before Medivh intervened, and Barthilas then died and awoke on the road to the World of the Dead.
• Uther's daughter joined Baron Rivendare's defenders at Stratholme, drank a Plague Potion, and declared herself Lady Deathwhisper as Thrall's army approached.
• Robbie helped defend Stratholme, while Mograine poisoned Orc supplies and won a battle that prompted Paladins to desert Uther and rally to the Holy Light.
• Robbie impersonated Arthas to stop Uther's assault, but Yalishandra and six other red dragons then burned much of Stratholme.
• Robbie used black smoke to kill a red dragon during the next attack, and Thrall later captured Yalishandra and her companions and corrupted their bodies.
• Jaina falsely told Alexstrasza that Arthas and Frostmourne had killed Yalishandra, but Alexstrasza declined revenge after Deathwing showed her the princess's death and discussed their shared goal of preventing End Time.
• Antonidas arrived with Dalaran's forces and demanded concessions from Thrall, then helped launch an assault on Stratholme that ended with Dathrohan struck down and more than a thousand Orcs dying without gaining a foothold.

Arthas forged Frostmourne, raised Lordaeron’s dead, and drove the Orcs toward Quel’Thalas while building an Undead society and seeking allies. The Scourge captured the Elf Gate and approached Silvermoon City, where Robbie warned Sylvanas that Medivh might control the city’s defenses.

• Arthas raised Stratholme’s dead, allied with Muradin, and forged Frostmourne while Medivh and Aegwynn tried to stop him.
• Arthas and Robbie defeated Mal'Ganis, but Thrall’s coronation turned violent when Thrall attacked Dalaran’s envoy and threatened the assembled leaders.
• Arthas shattered Lordaeron, raised its dead into the Scourge, and drove the Orcs from the region while deciding to pursue redemption and vengeance.
• Tichondrius manipulated Uther into opposing Arthas, but Arthas spared him before Jaina and Saurfang killed him and Tichondrius altered Uther’s memories.
• Medivh rallied Thrall and promised Sylvanas stronger defenses in Silvermoon City, while Kel'Thuzad organized the Scourge and sought allies against the Orcs.
• The Elf King admitted the Orcs to Silvermoon City, and Arthas empowered the Crypt Fiends before deciding to attack Quel'Thalas through the Sunwell Plateau.
• Arthas marched toward the Elf Gate as scouts defected to the Scourge, and the Elves abandoned the fortress after Ghouls crossed the mountains.
• The Scourge crossed the frozen river toward Silvermoon City, and Robbie warned Sylvanas that Orcs might eat the trapped High Elves and Medivh might control the city’s defenses.