After he arrives at King's Landing, Vaemond meets with Alicent and Otto to discuss the succession and who will control Driftmark and the largest fleet in Westeros. Otto seems to be on Vaemond's side as he will be more loyal to the Hightowers, but Alicent remains unsure.
Rhaenyra and Rhaenys have a tense discussion at the Weirwood tree regarding Laenor's "death" in the previous episode. To settle their rift, Rhaenyra proposes that her son Jace, the heir to the Throne after her, marry Baela, making Rhaenys's granddaughter the future Queen. Rhaenys tells Rhaenyra that she cannot accept the offer, at least not yet, because she must maintain neutrality for the moment.
Rhaenyra visits her father, who at first thinks her to be Alicent. She asks him if she believes that the prophecy of The Song of Ice and Fire is true and confesses that the burden of power may prove to be too much. She asks him to defend her and her son's claim to the Throne, the only person in the realm whose opinion can genuinely settle the matter.
As the Maesters painfully dress his wounds and clean him up, Viserys tells Otto he wants the family to have dinner together. Despite his pain, he refuses Milk of the Poppy, which would alleviate his suffering but also will dull his senses.
As the Hand of the King, Otto presides over the succession hearings, with Vaemond laying his claim that his blood is true, implying his line is the only real Velayron one in the room.
Rhaenyra begins her defense of her son but soon, the doors to the hall open up. A crippled Viserys enters and, despite his wounds, injuries, and decay, makes his way without help to the Iron Throne. He takes his seat, ready to hear what everyone is complaining about.
Viserys only wants to hear from one person: Princess Rhaenys, who, as Viserys says, will have the best insight into what Corlys wants. Rhaenys affirms what Rhaenyra wants to hear: Her son Luke is the rightful heir to Driftmark, and her sons Jace and Luke will marry Rhaenys' granddaughters, Baela and Rhaena. Viserys declares the matter settled and reaffirms Luke as the heir to Driftmark.
Needless to say, Vaemond doesn't take this well.
He accuses Viserys of treason, saying he will not allow it, and finally does what everyone was waiting for him to do. He loudly calls Jace and Luke bastards in front of the whole court, which is, as mentioned above, a treasonous offense. Oh, and he also calls Rhaenyra a whore, just because he realllllllly wants to seal his fate.
Viserys pulls out his dagger, saying he will have his tongue for that. He never gets the chance because Daemon slices Vaemond's head in two, sending his body crumbling to the floor in a bloody mess.
Despite collapsing onto the Throne, Viserys refuses Milk of the Poppy, not wanting to cloud his mind.