68 details you might have missed in the final season of 'Game of Thrones'

Season eight's opening credits sequence was changed to tell a new story.

Now three dramatic events are shown on the astrolabe: The Wall's breach, the Red Wedding, and the birth of Daenerys' dragons.

The last motif shows Daenerys Targaryen's dragons being hatched from their fossilized eggs.

Which brings us to the premiere episode's actual opening, showing Daenerys and Jon arriving to Winterfell.

Arya also repeated parts of her experience with royal arrivals in Winterfell.

She specifically noticed Sandor "The Hound" Clegane back then.

The Winterfell welcome party is also drastically different all these years later.

Here's how House Stark welcomed their last royal visitor:

Jon greeted Bran with a kiss on top of his head — mirroring the exact way he said goodbye to him back on season one.

"We can go out walking beyond the Wall if you're not afraid," Jon said.

When Jon and Arya finally reunited, their hug mirrored the way they last parted ways.

These over-the-shoulder shots were pitch perfect.

Jon Snow rode his first dragon, and the one he hopped on was named after his father.

Jon and Daenerys had a semi-romantic moment by a cave and waterfall.

This was a reference back to Jon's first romantic experience.

Toward the end of the episode, we saw Beric and Tormund enter Last Hearth — the castle of House Umber.

And inside, of course, was the young Lord Umber, killed and pinned to the wall.

This pattern is one of the symbols the White Walkers often leave behind.

The opening credits changed slightly again at the start of episode two, this time showing the war preparations at Winterfell.

Daenerys referred to Tyrion as Jaime's "little brother," nodding to one of the more popular fan theories for the Lannister siblings.

Valonqar means "little brother" in Valyrian, and Cersei interpreted that to mean Tyrion would eventually kill her.

Jaime repeated Brienne's argument from the season seven finale when Daenerys asked him to explain his desertion of Cersei.

That's very close to what Brienne told Jaime in the dragonpit when she was trying to persuade him to fight with the North.

With Jaime and Brienne together, this marked the first time the pieces of Ned Stark's sword had been back in Winterfell since his death.

The sword was taken by the Lannister when Ned was arrested and later melted into two new blades.

Tyrion repeated a joke we've heard before about how he'd prefer to die.

We heard it the first time back on the first season, when Tyrion was surrounded by the mountain clans in the Vale.

Arya and Gendry's flirtatious forge scene was a shot-by-shot recreation of a season two moment between them.

Here's Gendry, now and then, in the same shot.

Both Davos and Gilly were visibly moved by the sight of a young girl who reminded them of Princess Shireen Baratheon.

The scene was given added emotional weight with an instrumental version of the song Shireen once sang playing in the background.

When Arya found out Gendry was a Baratheon, the weight of that revelation added fuel to a fun fan theory.

Tyrion and Jaime mention the Siege of Pyke and Whispering Wood, two battles with loaded significance.

On season one, Jaime was standing guard duty when Jory — one of Ned Stark's most trusted men — came to him with a message.

The next time Jaime and Jory saw each other was when Jaime and the Lannister men attacked Ned in the streets of King's Landing.

Back on our season eight episode, Jaime calls himself the "fabled loser of the battle of Whispering Wood."

Meanwhile, that emotional knighting ceremony was a deep reference to George R.R. Martin's books.

Ser Duncan the Tall is Brienne of Tarth's ancestor.

The song Podrick sang was pulled straight from the books, and it's known as "Jenny's Song."

The version that played as the credits on the episode ran was by Florence and the Machine.

At the start of episode three, yet more small changes were made to the opening credits.

The Winterfell crypts were also changed slightly for episode three's opening.

Alys Karstark was with Bran and Theon Greyjoy at the start of the battle, which means she's most likely dead.

Alys didn't have any speaking lines this season but was shown on the first two episodes.

The spell Melisandre used to light the Dothraki's arakhs on fire is similar to the one used by Beric Dondarrion.

We know this thanks to Richard Dormer, the actor who plays Beric.

Some of the last words Edd Tollett said to Sam Tarly was an echo of their season-three encounter with the Army of the Dead.

Edd and Grenn stopped and encouraged Sam to get up because he'd die if he didn't move.

Wights threw themselves off the castle walls, harking back to the season five battle episode, "Hardhome."

On "Hardhome," one of the most striking moments was when the Night King had thousands of wights fling themselves off a cliff.

Arya passed along Jon Snow's fighting advice to Sansa (even though her sister didn't appear to learn the lesson).

"First lesson," Jon told Arya. "Stick 'em with the pointy end."

Arya's first encounter with the wight army led to a throwback fight move she used on the sixth season with the Waif.

Back when she was training, Arya had a triumphant moment when she stopped the Waif's staff in this same position.

The little girl who promised to protect Gilly and the others was briefly seen inside the crypt, though she didn't do any fighting.

When the Night King resurrected all the corpses, a familiar Dothraki man named Qhono was among their ranks.

Qhono was one of the Dothraki who took Daenerys prisoner at very end of the sixth season, but he went on to serve as her guard.

Theon's final moments in the godswood had a poignant connection to a key chapter in the book series.

In the books at this same time, Bran is still beyond the Wall and learning to use his powers.

Theon's manner of death is a callback to the rousing speech he once gave at Winterfell.

Back on the second season finale, Theon delivered a rallying speech to the Iron Born about the "Battle of Winterfell."

Arya's surprise dagger-flip move was similar to one she pulled on Brienne last season, as well as a nod to Maisie Williams being right-handed.

Back on season seven, Arya trained with Brienne and the two came to a draw after Arya flipped her dagger from one hand into the other.

Arya stabbed the Night King in the exact spot where dragonglass was shoved into his chest by the Children of the Forest.

The showrunners said only Valyrian steel stabbed in that exact spot could have killed the Night King.

Davos was drawing a dagger so he could kill Melisandre before she allowed herself to die.

Last but not least, the episode title "The Long Night" is linked to an early season-one scene and the developing "Game of Thrones" prequel series.

For the fourth episode of the season, "The Last of the Starks," we start with another credits change.

Daenerys had a brand new Targaryen-red costume for the feast scene, and it's the first time she's worn this much of her House color.

Emilia Clarke as Daenerys Targaryen on "Game of Thrones." HBO

For Winterfell's celebratory feast scene, Daenerys was dressed in a fully red dress/coat with a black panel running down its front.

The House Targaryen colors of red and black have had a presence in her costumes, though never before was it this pronounced.

For Winterfell's celebratory feast scene, Daenerys was dressed in a fully red dress/coat with a black panel running down its front.

The House Targaryen colors of red and black have had a presence in her costumes, though never before was it this pronounced.

The costumes are carefully crafted to reflect characters' journeys, so this was a major hint about Daenerys' future actions.

"Game of Thrones" showrunners David Benioff and D.B. Weiss appeared on the episode as two wildlings.

Podrick Payne swooped in after Sandor Clegane yelled at one of the Winterfell gals, and left the feast with two women.

Arya repeated a line from the first season when she turned down Gendry's proposal.

Back on the first season, Arya told Ned the same thing when he tried telling her about her future.

When Tyrion was trying to reason with Bronn, he started to say one of the show's most iconic adages.

This was the pearl of wisdom Varys gave to Tyrion back on the second season.

Then came the fifth episode, "The Bells." Like clockwork, the credits shifted ever so slightly.

Even before the episode began, the "previously on" segment had a series of important context clues.

The pieces of dialogue were all centered on the tormented Targaryen legacy.

The episode formally started with Varys writing a letter about Jon Snow's real identity.

The "little bird" Varys was using to try to poison Daenerys was a familiar face.

Martha was next to Varys in the crypts during the Battle of Winterfell.

When Varys was outed by Tyrion and burned alive for his betrayal, the scene mirrored another Dragonstone execution.

Varys was killed in the same place where Stannis and Melisandre once burned people alive for not believing the Lord of Light.

This shot of Drogon's shadow passing over King's Landing came straight from Bran Stark's vision on the fourth season.

Here's what that shadowy scene looked like when Bran saw it:

Bran also saw this scene of snow falling in the throne room.

Daenerys had the same snowy vision on the second season finale.

Daenerys was in a new costume for her attack on King's Landing, and it fully embraced her dragon-like side.

After Daenerys heard the bells of surrender and opted to continue attacking the city, we never saw her again — only Drogon.

Jaime got his death wish.

Their fates seem intertwined in the book series, too.

Arya barely survived all the destruction wrought by Daenerys, and at the end of the episode she found a white horse.

The horse has yet another meaning. The little girl Arya failed to save was holding a small white horse.

The opening credits changed for a final time, and they included the tiny detail of the cracked map floor in the Red Keep.

The crack splits the map right around where the North begins.

Jon recalled Aemon Targaryen's lessons to him from season one, and they connect to virtually every main storyline on the show.

"We all do our duty, when there is no cost to it," Aemon said.

"What is honor compared to a woman's love?" Aemon asked.

"What is duty against the feel of a newborn son in your arms?" Aemon asked next.