At Winterfell, Littlefinger plots to isolate Sansa. Tensions between Arya and Sansa grow following Arya's discovery of the letter Sansa sent as a child begging for Robb's fealty to Joffrey. Sansa discovers Arya's bag of faces she took from Braavos. At Dragonstone, Tyrion counsels Daenerys about her upcoming negotiations with Cersei. Beyond the Wall, Jon leads a raiding party to capture a wight to bring South as evidence of the White Walkers' existence. After successfully capturing one, the group is besieged by the White Walker army. Jon has Gendry return to Eastwatch and send a raven to Daenerys to request her help. Thoros freezes to death overnight. Daenerys arrives and saves the group from the wights, with the help of her dragons. The Night King, leader of the White Walkers, throws an ice spear at Viserion, one of Daenerys' dragons, and kills it. Daenerys flies off, along with the raiding party, but is unable to save Jon. Benjen Stark intervenes and sacrifices himself to allow Jon to escape. When Jon and Daenerys are reunited, Jon pledges himself and the North to Daenerys as Queen. The Night King resurrects Viserion, making the dragon a part of his army.