Cersei rallies lords, including Randyll Tarly, by stoking fear of Daenerys’s "foreign" army. Qyburn reveals the "Scorpion," a massive ballista designed to kill dragons. Major Climax: Battle of the Narrow Sea Game of Thrones – Season 7 Episode 2 “Stormborn”

Jon Snow receives a message from Sam about the "dragonglass" hoard at Dragonstone. Despite Sansa and the Northern lords' objections, Jon decides to meet Daenerys, leaving Sansa in charge of Winterfell.

Samwell Tarly attempts a forbidden, agonizing treatment to cure Jorah Mormont’s grayscale by surgically removing the infected skin.

Daenerys holds a council with her allies—Yara Greyjoy, Ellaria Sand, and Olenna Tyrell. Despite pressure to attack King’s Landing directly with dragons, Daenerys accepts Tyrion’s plan: a siege of the capital using Westerosi forces (Dornish and Tyrell) to avoid appearing as a "foreign invader" while the Unsullied attack Casterly Rock.