At The Twins in the Riverlands, "Walder Frey" presides over the second feast that he has organized in a fortnight. "Lord Frey" has summoned every Frey whom he cares about under the pretext of revealing his plans. "Walder" orders the servants to serve them wine from the Arbor but harshly tells his wife Kitty Frey that he is not wasting any wine on her. "Walder" thanks his family for helping him to slaughter the Starks and details the violent deaths of King Robb Stark, his wife Talisa Stark and her unborn child, and Lady Catelyn Stark much to the laughter of his family.
Little Waiting Time...
However, he chides them for missing one Stark as the Freys begin to choke from poisoned wine. As his family members die around him, "Walder" then remarks "leave one wolf and the sheep are not safe." "Walder" then reveals himself as a disguised Arya Stark, who has exacted vengeance on her family's murderers. Arya spares Walder's surviving wife and the servants and instructs them to tell any who ask what happened that "the North remembers, and that winter came for House Frey."
Later, Arya, having acquired a horse, is riding south when she stumbles upon a group of Lannister soldiers who have been sent to the Twins to keep law and order. The soldiers are singing "Hands of Gold" and offer to share rabbit meat for dinner. When the soldiers ask why she is riding south, Arya tells them that she is traveling to King's Landing. Arya learns from the soldiers that the Great Sept of Baelor and its surroundings have been destroyed and that the Red Keep has been essentially sealed. The young soldiers insist that she join them around the campfire to eat and rest. When she asks about their adventures, the soldiers admit that they are homesick and once they left home they wished to return to their families. The young soldier offers her blackberry wine while his brother in arms asks why she is traveling south. Arya tells them that she is going to kill the Queen. Thinking that she is joking, they all burst out laughing. Arya smiles and laughs with them.
Elsewhere, Sandor Clegane is riding north with the Brotherhood Without Banners, through thick snow. They decide to shelter for the night at an abandoned home but Sandor, recognizing the building, declares it unsafe. Beric Dondarrion dismisses Sandor's unease and orders that they set up camp for the night. The men enter the house where they discover the corpses of the Farmer and his daughter Sally, whom he and Arya Stark had encountered two years prior, following the Red Wedding. It appears that the father killed his daughter and himself so that they would not starve to death.
In private, Sandor recalls seeing Beric at the tournament at King's Landing. Beric confides that he does not know what R'hllor, the Lord of Light, is telling him. Sandor remarks that he does not believe in divine justice, citing the fate of the father and his daughter. Despite Sandor's fear of flames, Thoros tells him to look into the fire. He tells him that only the fire can show him what the Lord of Light wants him to see. At first, Sandor can only see burning logs but he then, to his own shock, sees a Wall of Ice. He also sees a castle where the Wall meets the sea, and a mountain that looks like an arrowhead and thousands of the dead marching past. Beric then asks Sandor if he now believes that they are here for a reason.>
Later, Thoros finds Sandor burying the dead farmer and his daughter Sally in the snow. The Brother asks if he knew those people but Sandor admits that he doesn't. Sandor is about to deliver an epitaph to the Seven but can't remember the rest of the verse. Instead, he simply tells the dead that they deserve better.
At Winterfell, the King in the North Jon Snow orders his bannermen to conscript all able-bodied men and boys aged 10 to 60 in his kingdom in order to train them and equip them for war. But because having only half of the population in the North fighting the White Walkers is not enough he also orders that every woman and girl should also be trained and equipped as well. He also asks that all maesters should start searching for dragonglass stressing it is now more valuable than gold due to the threat of the White Walkers. When Robett Glover questions Snow, Lady Lyanna Mormont remarks that girls will not remain idle and volunteers to help. Sansa Stark urges her "half-brother" to strip the Umbers and Karstarks of their castles as punishment for turning against the Starks. However, Jon advocates forgiveness and insists that children will not be punished for the crimes of their fathers. Despite Sansa's continued insistence, Jon insists his decision is final and summons Ned Umber and Alys Karstark to reaffirm their loyalty to House Stark. They oblige and kneel before King Jon. Jon says that the mistakes of the past don't matter anymore. Petyr Baelish watches the proceedings with a smile.
In private, Jon Snow chides Sansa for questioning his decision-making in front of the other lords and ladies and tells her to trust him. When Sansa reminds him that the late Joffrey Baratheon did not tolerate dissent, Jon reassures her that he is not Joffrey. Sansa tells Jon that she knows he is nothing like Joffrey and assures Jon that he is good at leadership but she wants him to be wiser than their late father and brother. She confides that their father sought to protect her from the harshness of reality including swearing. Maester Wolkan then delivers a message from the newly-crowned Queen Cersei Lannister; though she is apparently not opposed to House Stark reclaiming the North from House Bolton, she demands that they submit to her authority. While Jon is preoccupied with preparing to fight the Night King, Sansa warns him not to underestimate Cersei.
Later, Brienne of Tarth and Podrick Payne spar with swords. Podrick is struggling and Tormund tells him that he has long to go. Petyr and Sansa are watching Brienne and Podrick sparring. Sansa dismisses Littlefinger's attempts to get under her skin by stating that she is safe at Winterfell because Brienne is protecting her, and retorts to his prodding that she looks unhappy only because she yearns for peace and quiet. When Brienne, having seen what is going on, moves over to intervene, Baelish scurries off. When Brienne asks why Petyr is still here, Sansa replies that the Knights of the Vale helped to turn the tide of the Battle of the Bastards. However, Sansa is confident that she knows what Petyr wants.
Beyond the Wall, a column of White Walkers riding undead horses leads a horde of Wights through a snowstorm. Their numbers include at least three undead Giants. Meanwhile, Bran Stark and Meera Reed reach the gate beneath Castle Black. They are greeted by the Acting Lord Commander Eddison Tollett and several armed Black Brothers. Edd asks if they are Wildlings, but Meera introduces herself and Bran. When Edd asks them to verify their identities, Bran responds by "recognizing" Edd from the conflicts at the Fist of the First Men and Hardhome, observing that he has seen the army of the dead. Edd decides to bring the two of them inside, giving a final nervous glance at the increasingly hostile lands beyond the Wall.
At King's Landing, Queen Cersei shows Jaime Lannister a giant map of Westeros she is having painted on a floor. Jaime has not spoken since his return due to his anger with Cersei over the death of their youngest son, the late King Tommen Baratheon. Cersei tells Jaime that their estranged brother Tyrion Lannister has returned with Queen Daenerys Targaryen at the head of an armada. Jaime thinks that Daenerys will land her forces at the fortress of Dragonstone: the Targaryen princess is likely to be drawn to her birthplace, and more importantly, the deep water around the island will allow her fleet to make anchor. Cersei notes that they have enemies in the south, west and the north: the Tyrells, Dorne, and the Starks.
While Cersei has dreams of ushering in a long dynasty, Jaime tells Cersei that they are losing the war, and with all their children dead, there is no Lannister line to inherit the Iron Throne. When Jaime asks Cersei about Tommen, she responds angrily that he betrayed them. Cersei adds that they are the only living Lannisters who count. Jaime tells her that they need allies and reports that House Frey has been exterminated. Cersei angrily reminds him that she has been listening to their father's counsel for the past forty years and has learnt some things.
A large Ironborn fleet bearing the sigil of House Greyjoy sails into King's Landing. Cersei tells Jaime that she is planning to forge an alliance with Euron Greyjoy. Jaime criticizes her decision and points out that the Greyjoys are oath breakers and "bitter killers." Cersei responds that she plans to marry Euron. In the throne room, Queen Cersei and Jaime host Euron. Seeking revenge against Yara and Theon Greyjoy for running away with part of the fleet, Euron proposes that they join forces to murder their enemies including Tyrion.
When Jaime questions Euron's legitimacy and trustworthiness, Euron talks about the Greyjoy Rebellion and praises Jaime's swordsmanship. Euron adds that he went into exile because of the Greyjoy Rebellion. He boasts that the Iron Fleet is the greatest fleet that Westeros has ever seen. Euron proposes to marry Cersei to seal a marriage pact. Cersei declines due to his history of oath breaking and his role in murdering his brother Balon Greyjoy. Euron seems neither fazed nor disappointed and promises not to return to King's Landing until he has delivered his "finest gift."
At the Citadel in Oldtown, Samwell Tarly is assigned menial work. His duties include serving the Maesters' meals, emptying their chamber pots, and storing books. While browsing through the library, he stares at a book behind a locked grate in the restricted section. Later, Samwell helps Archmaester Ebrose to dissect a corpse. Samwell asks the Archmaester if he has read his proposition. In light of what he has seen in the North, Samwell asks for permission to read the restricted section. When Samwell says that he has truly seen the Army of the Dead, the Archmaester responds that Maesters are naturally critical.
Still, he accepts Samwell's claim because the stories about the Long Night are corroborated in a number of sources. The Archmaester reminds him that Maesters are guardians of knowledge and history. Still, the Archmaester believes that the Wall will not fall because it has stood for millennia. He tells Sam to finish his job. Later that night, Samwell steals a Maester's key and enters the forbidden section.
While Samwell studies, Gilly entertains her young son Sam, who is now a toddler. Gilly asks him about the book he is studying, which is about The Long Night. Samwell mentions that Stannis Baratheon told him that dragonglass could be found on Dragonstone. To his surprise, the book reveals that Stannis was understating the situation: there is a veritable mountain of obsidian just outside the castle. Sam excitedly prepares a letter to Jon Snow relating the discovery.
The next day, while gathering empty bowls from the cells of the Citadel sanitarium, Samwell is confronted by a shadowy figure whose arm is almost completely covered in greyscale. The figure demands to know if the Dragon Queen has arrived yet. Samwell sputters that he does not know, and the figure withdraws his arm.
On Dragonstone, meanwhile Queen Daenerys Targaryen along with her closest advisers – Tyrion Lannister, Varys, Missandei, and Grey Worm – land at Dragonstone island, as all three of her dragons circle overhead. After landing, Daenerys bends down and touches the sand, touching the ground of Westerns for the first time since her birth. She and her entourage then climb the steps to Dragonstone castle. Accompanied by Grey Worm and other Unsullied guards, they silently enter the unguarded main gates and deserted courtyard. When they enter the castle itself, Daenerys briefly studies the fiery stag on one of Stannis's banners; after a moment, she rips it down with a firm tug. Daenerys enters the empty throne room and gazes upon the throne of the Targaryens, hewn from volcanic rock. When Grey Worm moves to stand beside her, Missandei holds him back, waiting for their queen. After a moment, Daenerys strides right past the throne and enters the Chamber of the Painted Table. Surveying the discarded markers from Stannis's last use of the Table, she turns to Tyrion and remarks "shall we begin?"
Bran and Mera arrive at castle black. Jon and Sansa plan the defense against the long night. Cersei forges new alliances. Samwell trains to be a maester. Arya gets her revenge. The Hound takes shelter in a familiar place. Daenerys arrives at Westeros.
PETER DINKLAGE ( Tyrion Lannister )
KIT HARINGTON ( Jon Snow )
NIKOLAJ COSTER-WALDAU ( Jaime Lannister )
LENA HEADEY ( Cersei Lannister )
EMILIA CLARKE ( Daenerys Targaryen )