This week's House of the Dragon picks up in the immediate aftermath of King Viserys' death. As Talia, Alicent's Handmaiden and a spy on behalf of the "White Worm," is made aware, Alicent awakens in a panic, realizing what this now means. As will become important later in the episode, Talia lights a candle in the window of her room, a signal to the White Worm that the King has passed.
Alicent tells Otto that she believes that Viserys wanted their son Aegon to be King and not Rhaenyra. "It's the truth, out of his own lips," she tells him. Being the conniving bastard he is, Otto naturally seizes upon the moment to, well, seize power. They gather the Small Council to inform them of Viserys' death and what the plan for the future is.
Unsurprisingly, they were ready for this, and everyone on the Council, except Lord Beesbury and Alicent, was ready to get Aegon on the Throne. He might have been a bit of an oddball in his life, but Lord Beesbury says what we are all thinking: It's wrong, treasonous, and is theft.
What does he get for his honor? His face bashed into the table by Alicent's resident goon, Ser Criston Cole. It wasn't intentional, given the Queen's reaction, but this causes the Lord Commander of the Kingsguard, Lord Westerling, to pull his sword on Criston. Westerling demands that Criston take off his cloak and surrender for his crime. Criston backs down, but Lord Westerling, much like Beesbury, sees this as an act of treason.
Alicent asks what they will do about Rhaenyra, and she knows that both she and Daemon will not surrender or bend the knee. If they aren't imprisoned or exiled, the Council agrees they must be killed. After Otto orders Westerling to take his knights to Dragonstone, he throws down his cloak and leaves in disgust.
Alicent tells her children, Helaena and Aemond, that their father is dead.
Helaena, being ever the strange woman that she is, utters an incredibly mysterious phrase: "There is a beast beneath the boards" in response. So cryptic, but it'll make sense a little later.
Ser Erryk, one of the Kingsguard assigned to Prince Aegon, is assigned by Otto to find Aegon, who has left the Keep and gone into the city. Otto tells him to take his brother, Arryk, with him and go in disguise.
Rhaenys finds herself locked in her chambers, a prisoner of the Hightowers for the moment. Larys has also rounded up all of the servants who know of Viserys' death and locked them in the dungeons.
Alicent assigns Criston to find Aegon for her own aims, and Aemond volunteers to go with him. The two duos look for Aegon, one more conspicuously than the other, with no success so far.
Otto gathers some of the various lords and ladies of the Realm to tell them of Viserys' death, Aegon is the rightful heir, and they must swear allegiance to him. Some kneel immediately, but the Lord of House Fell tries to leave to "confer with his house," as well as Lord Caswell, who eventually bends the knee albeit reluctantly.
Caswell later attempts to escape King's Landing to warn Rhaenyra of what is to come and gets hanged, with his body left in the courtyard for all to see.