Winterfell fights the Army of the Dead. The initial Dothraki charge is destroyed and the Unsullied are quickly overwhelmed despite the dragonfire; Edd is killed saving Sam, and the survivors retreat into the castle as Melisandre ignites the fire trench surrounding Winterfell to delay the advancing horde. Jon and Daenerys engage the Night King in the air on their dragons. The wights invade Winterfell and overpower the defenders: Lyanna Mormont is killed destroying a giant wight, Beric dies defending Arya, and Melisandre tells Arya what she must do. Jon and Rhaegal knock the Night King off Viserion, and Daenerys and Drogon burn him with dragonfire to no effect.
The Night King raises the slain Winterfell soldiers along with the dead entombed in the Stark family crypt, who attack those sheltering there. Wights pull Daenerys from Drogon, and Jorah is fatally wounded defending her, while the Night King kills Theon as he protects Bran. Arya ambushes the Night King and stabs him with her Valyrian steel dagger, shattering him, his White Walkers, Viserion, and all the wights. Her purpose served, Melisandre allows herself to die of old age.