'Game of Thrones' Recap: 'Book of the Stranger'

— -- (SPOILERS AHEAD!)

It was a night of reunions on "Game of Thrones" -- some more pleasant than others. But it was Daenerys who really fired things up, ending the episode in a blaze of glory. Here’s what went down on Sunday night's episode:

Castle Black

Newly revived Jon Snow is still hell-bent on leaving Castle Black and ending his run as Lord Commander, but Dolorous Edd is trying to convince him to stay. Before he can decide one way or the other, Sansa Stark -- Jon’s half-sister -- enters the gates with Brienne and Podrick in tow. It’s an emotional reunion for the two siblings, who haven’t seen each other in years. They take some time to reminisce about better days at Winterfell, and Sansa apologizes to Jon for being so “awful” to him in the past. He forgives her.

Jon’s less receptive to Sansa’s desire to take back Winterfell from Ramsay Bolton. He says he’s tired of fighting, but a determined Sansa says she’s ready to overthrow Ramsay with or without Jon’s help.

Later on, Jon receives a threatening letter from Ramsay in which he details -- in the most graphic way possible -- what will happen if Jon doesn’t return Sansa to him. He also taunts Jon with the knowledge that he’s holding Rickon Stark prisoner.

Vaes Dothrak

Daario Naharis and Jorah Mormont sneak into Vaes Dothrak on their mission to rescue Daenerys. They find her, but she assures them that they’d never make it out alive if they simply tried to escape. She has another plan.

Turns out that plan involves playing with fire. Daenerys faces the Khalasars, who are gathered inside the Temple of the Dosh Khaleen to decide whether she will live out the rest of her days with the widows of the dead or meet a worse fate. Daenerys quickly takes charge of the meeting, calling them all “small men” and telling them she’s more fit to lead the Dothraki than they are.

They barely have time to underestimate her before she sets the temple ablaze. The Khalasars are trapped inside and they all burn to death, while Daenerys “the Unburnt” emerges from the fire once again unscathed. The Dothraki all bow to her as she stands naked before them.

Winterfell

It wouldn’t be a "Game of Thrones" episode without a little bloodshed courtesy of Ramsay Bolton. This time, Osha -- the Free Folk servant who had been protecting Rickon -- is at the end of his knife. She tries to kill him first, but Ramsay prevails.

The Vale

Petyr Baelish is back! Baelish, also known as Littlefinger, returns to the Vale to continue his scheming. He knows Sansa has escaped Winterfell and is likely at Castle Black. He tells Lord Robin Arryan -- Sansa’s cousin -- that Sansa won’t be safe for long and proposes they gather the Knights of the Vale and go help her.

Tyrion attempts a diplomatic approach with the masters of Slaver's Bay. He gives them seven years to phase out slavery and promises the slaveholders will be compensated. In exchange, he wants them to cut off support of Sons of the Harpy.

Missandei and Grey Worm -- who were former slaves -- are not happy with Tyrion’s tactics.

King's Landing

An imprisoned Queen Margaery is summoned by the High Sparrow. In a long speech, he tells her about his past as a sinner and what finally made him see the light. He then allows her to see her brother, Loras, who is also being held prisoner. Loras is in bad shape, but Margaery encourages him to stay strong.

Meanwhile, King Tommen confides to his mother Cersei that the High Sparrow is planning to force Magaery to make her walk of atonement. Cersei and Jamie set a plan in motion to overtake the High Sparrow and his followers once and for all. The downside? If things go wrong, they could spark an all-out civil war in the city.

Iron Islands

Theon Greyjoy makes his return to the Iron Islands -- his home. He’s reunited with his sister, Yara, but she’s not exactly happy to see him considering that when she tried to rescue him from Ramsay’s clutches previously, he refused to go. Plus, she thinks he came back to claim the throne. But he assures her that he only wants to help her to rule the Iron Islands.