Contains spoilers for this episode and earlier episodes.
Daenerys questions Varys about his changing loyalties. He says he serves the people, and she demands honest counsel while warning him against betrayal. Melisandre urges her to meet Jon; Tyrion supports the suggestion and sends an invitation requiring Jon's submission. At the war council, Daenerys accepts Tyrion's plan to besiege King's Landing with Westerosi allies while the Unsullied attack Casterly Rock. Olenna privately urges her to trust her own instincts. Grey Worm and Missandei become lovers before he departs.
At Winterfell, Jon decides to travel to Dragonstone after Sam confirms its dragonglass deposit. His supporters object, but he leaves Sansa in charge and warns Littlefinger to stay away from her. Arya meets Hot Pie, learns that Jon holds Winterfell and changes course for home. On the way, she encounters Nymeria leading a wolf pack. The direwolf recognizes her but will not return with her. In Oldtown, Sam defies Ebrose's prohibition and begins cutting away Jorah's infected greyscale.
Cersei presents Daenerys as a dangerous invader to the southern lords, while Jaime attempts to win Randyll Tarly's support against the Tyrells. Qyburn demonstrates a large bolt-launching weapon capable of piercing a dragon's skull. At sea, Yara's fleet is ambushed by Euron. He kills Obara and Nymeria Sand, and his forces capture Ellaria and Tyene. Euron seizes Yara and challenges Theon to save her. Overwhelmed by the violence around him, Theon jumps into the water, leaving his sister in Euron's hands.