 -- In this week's episode of "Game of Thrones," "The Queen's Justice," Daenerys and her team try to recoup after their brutal defeat on the sea in last week's episode. Meanwhile, a triumphant Euron Greyjoy returns to King's Landing, Jorah Mormont finds himself in a much better state of health, and we have another Stark reunion. But first, we head to Dragonstone, where ice will finally meet fire.

Dragonstone

After last episode's invitation, Jon Snow arrives in Dragonstone to meet Daenerys. He's greeted by Tyrion, and they make awkward small talk involving whether Tyrion and Sansa consummated their marriage. (They didn't.) The conversation livens up considerably when one of Dany's three dragons swoops past, very much surprising Jon, who stares at the flying monster in disbelief.

Conspicuously absent from the greeting party is the Red Woman, Melisandre. She tells an inquiring Varys that she didn't leave on good terms with Jon. She adds that she's planning on traveling to Volantis, and Varys says she should probably never return, Melisandre assures him that she will be back eventually.

Finally, Dany and Jon meet, but it doesn't go as smoothly as some internet fan fiction predicted. In the Dragonstone throne room, she reminds him that his ancestor pledged loyalty to hers, so Jon should bend the knee to her. He refuses, however. He says he didn't go to Dragonstone to pledge loyalty; instead, he's there to ask her help in defeating the White Walkers.

He tells her that she may well be the rightful ruler of Westeros but that won't matter if the Night King and the army of the dead kill everyone and everything. Dany is quite skeptical of Jon's claims, and their conversation is interrupted when Varys arrives to inform her that Euron Greyjoy destroyed their most of their fleet.

One of their last ships finds Theon, who in cowardice jumped overboard last episode after his sister, Yara, was captured by Euron. Dany wants to go find Euron and have her dragons burn his ships, but Tyrion advises it's too dangerous for her.

Later, Tyrion goes to talk with Jon. After commenting on his brooding skills, Tyrion asks Jon is there's anything he can do to help him form an alliance with Dany. Jon informs Tyrion of the mountain of dragonglass at Dragonstone, which can be used to kill White Walkers. Tyrion advises Dany to allow Jon and his people to mine the dragonglass, and she does. Jon asks Dany if she believes him now about the White Walkers, but she doesn't answer.

King's Landing

Euron arrives in King's Landing with Yara, Ellaria and the surviving Sand Snake, Tyene, in tow. He presents his prisoners to Cersei, telling her he has brought her what "no other man can," with a pointed look at Jaime. Cersei tells Euron that he will be rewarded with what he desires — her hand in marriage — once the war is won. Euron's pretty happy about this and brazenly asks Jaime about Cersei's bedroom preferences. It's about as uncomfortable as you might expect.

Later, Cersei turns her attention to Ellaria. She taunts her prisoner over her lover Oberyn's death at the hands of the Mountain. Cersei ticks off various sadistic ways she considered to avenge the death of her daughter, Myrcella, then kisses Tyene, poisoning her the same way Ellaria killed Myrcella. Cersei sentences Ellaria to watch helplessly as Tyene painfully succumbs to the poison and her body rots.

After that horrifying scene, Jaime and Cersei sleep together. The next morning, Cersei has a meeting with a representative from the Iron Bank in Braavos, who reminds her that wars are expensive and the crown already owes a huge sum. She's not worried though, since, of course, Lannisters always pay their debts.

Winterfell

With Jon in Dragonstone, Sansa is left in charge of Winterfell. She takes pretty quickly to being a ruler, working to prevent food shortages and inspecting the soldiers' armor. She has a moment alone with Petyr Baelish, who advises her that she needs to "fight every battle everywhere." As with most Littlefinger speeches, this one teeters between being creepy and genuinely insightful.

Their moment is interrupted when Bran arrives at Winterfell. Hooray! Another Stark reunion! As they catch up, she tells him that, as the only surviving nonbastard Stark son, he's the rightful lord of Winterfell. Bran says he can't be a lord, because he's the Three-Eyed Raven. Sansa asks what that means, and Bran says it means he can see everything all the time. Not really knowing how to communicate with her now mystical brother, Sansa awkwardly ends the conversation.

The Citadel

Thanks to Sam's medical heroics, Jorah appears to be cured of greyscale. Jorah lies about his recovery to the archmaester, who had forbidden Sam to attempt the procedure, saying it must have been due to rest and the great climate. The archmaester is no fool and knows Sam was responsible. Instead of being angry at Sam, he tells him he should be proud. However, he won't go so far as to reward Sam and orders him to return to his grunt work.

Casterly Rock

While Dany's army took a hard defeat on the sea, they're hoping for a better result on land with the invasion of Casterly Rock. Grey Worm leads the army to the Lannister castle, and using a secret underground passage that Tyrion designed, they're able to rather easily take the stronghold. Too easily, in fact: Jaime and Cersei anticipated the attack on Casterly Rock, and instead of using their army to defend it, Jaime led the bulk of their troops to attack Highgarden, the seat of House Tyrell. Euron then arrives at Casterly Rock to burn Grey Worm's ships.

At Highgarden, Jaime and his army have an easy and brutal victory. He finds Olenna Tyrell, and he pours poison in her wine. She drinks it, but before she dies, she taunts Jaime over Joffrey's death, which she reveals was her doing. She instructs Jaime, "Tell Cersei. I want her to know it was me."