Three men of the Night's Watch ride out beyond the Wall after receiving reports that lawless tribes of wildings have been sighted near the border. Will, a slight ranger, verifies this information when he finds the dismembered corpses of the group's men, women and children scattered in a frozen glade. He carries the news back to his comrades, Gared and Ser Waymar Royce, but before they can investigate further, the bodies disappear. As Will searches the area, the forest fills with Royce's screams and the gallop of the group's bolting horses. Will races through the trees and comes face to face with Gared - moments before a shadowy creature with glowing blue eyes severs his friend's head and tosses it at Will's feet.
In the courtyard of Winterfell, young Bran Stark struggles with archery practice as his family looks on. His tomboy sister, Arya Stark, abandons her training in needlework to fire a shot over Bran's shoulder with her own bow, skewering the target's center and sending the Starks into laughter. Their mirth is cut short, however, by news from Ser Rodrick Cassel, the house's Master at Arms: "The guards rode in from the hills. They've captured a deserter from Night's Watch." Lord Ned Stark knows immediately what he must do, and orders his boys to saddle their horses.
On a hillside outside the castle walls, the ranger Will stands before Ned, understanding that his sentence is death but swearing that he saw White Walkers. Ned draws his family's ancient blade, called Ice, and metes out the punishment as his sons - even young Bran - look on. Afterward, he tells his the boy: "Our way is the old way. The man who passes the sentence should swing the sword." When Bran asks his father if the deserter really saw the White Walkers, Ned assures him that they've been gone for thousands of years.
On their return to Winterfell, the party comes across a dead direwolf - a monstrous creature rarely seen south of the Wall. The wolf birthed a litter of pups before her death, and Jon Snow, bastard son to Ned, convinces his father that it's an omen: The direwolf is the sigil of House Stark, and Ned's five true-born children are meant to have the pups. As they walk away, Jon spies an albino runt cast to the side and takes it for himself.
In the throne room at King's Landing, Ser Jaime Lannister and his twin sister Queen Cersei Baratheon look on as the Silent Sisters perform death rights over the body of John Arryn, the Hand of the King. Cersei worries that Arryn may have shared some unmentionable secret before his death, but Jaime is not concerned and notes that King Robert will find a replacement for Arryn soon enough. Not that serving as Hand is a job anyone should want - as Jaime puts it: "Their days are too long, and their lives are too short."
A message arrives at Winterfell saying that John Arryn is dead and King Robert is paying a visit. Ned knows this can mean only one thing - that Robert plans to ask him to serve as the new Hand. The house is thrown into preparation, and when the king arrives he greets his old friend with a bear hug and immediately asks to visit the crypts of Winterfell. By the tomb of Lyanna Stark, who was betrothed to Robert before her death, Robert poses the offer he rode so far to deliver. "You helped me win the Iron Throne," he says. "Now help me keep the damn thing. I have a son. You have a daughter. We'll join our houses." Ned withholds his answer ... but knows he can't refuse.
The Stark family throws a feast in Robert's honor, which the king thoroughly enjoys by getting raucously drunk and burying his face in the breasts of a serving wench. The Queen looks on, unamused, as she tells Lady Catelyn Stark that her daughter, Sansa Stark, will make a natural fit with the nobles in the capital.
Jon Snow, on the other hand, is seated far from the royal table so as not to insult the queen with his low birth. He steps outside to talk with his uncle, Benjen Stark, who is a ranger in the Night's Watch. Jon begs Benjen to take him to the Wall when he returns, but his uncle knows that Jon is too young to make such a weighty decision. Benjen walks off, and Tyrion Lannister - the dwarf brother of Jaime and Cersei - steps out of the darkness and asks, "You're Ned Stark's bastard?" Jon takes offense, but Tyrion advises him to remember who he is and it can never be used to hurt him. "All dwarves are bastards in their fathers' eyes," he tells Jon.
Inside, Benjen tells Ned that he's also heard reports of White Walkers, which must be untrue but even as a madman's raving is unwelcome. Ned nods, discomforted by the news as well as the feast echoing through his home, responds with the family's stoic words: "Winter is coming." On his way through the great hall, Ned crosses paths with Jaime Lannister, who says he looks forward to Ned's arrival in King's Landing to serve as Hand. Perhaps if Robert throws a tournament to celebrate, they could spar against each other, Jaime suggests. "I don't fight in tournaments," Ned replies. "Because when I fight a man for real, I don't want him to know what I can do."
Far to the southeast of Winterfell, on the continent of Essos across the Narrow Sea, a young silver-haired man, Viserys Targaryen, prepares his sister Daenerys to meet a possible husband. As the last heir in his line - a storied family of kings who Robert nearly wiped out when usurping the Iron Throne - Viserys hopes to wed his sister to a Dothraki horselord named Khal Drogo as a means of securing the khal's massive army to help reclaim rule over Westeros. Callow and mean-spirited, he keeps Daenerys in line by warning her not to "wake the dragon."
With the help of Magister Illyrio Mopatis, a wealthy merchant who recognizes the opportunity in befriending a deposed king, the Targaryens meet Drogo, who wordlessly assesses Daenerys and then turns his horse and leaves. When Viserys asks whether the khal liked his sister, Illyrio replies: "If he didn't like her, we'd know."
Their wedding is performed in traditional Dothraki style, meaning that the crowd participates in wanton sex and murder. As a gift, Daenarys receives a chest of priceless dragon eggs from Illyrio, and an exiled Westerosi knight named Ser Jorah Mormont gives her books containing the history of her homeland. After the wedding, Daenerys weeps as Khal Drogo deflowers her - not gently - on a cliff above sea.
After the feast, Ned and Catelyn rest in bed when Maester Luwin arrives with a missive from Catelyn's sister Lysa, the widow of Jon Arryn. The message says that Arryn was murdered by the Lannisters and that the king is in danger. Catelyn begs her husband not go south to King's Landing, but he knows he has no other option. The next morning, after he accepts Roberts offer, the king thanks him and says he knows the sacrifice Ned is making - but there's no other man he can trust.
Ned leaves for a hunt with Robert and his retinue, waving goodbye to his son, Bran. The young Stark spends the afternoon climbing the rocky walls of Winterfell, one of his favorite hobbies. At the pinnacle of an abandoned tower, he hears strange noises, and when he looks inside a window, he sees Jaime Lannister and his twin sister, Queen Cersei, having sex on the floor. Cersei notices Bran and screams. Jaime steps to the window frame and grabs the boy, holding him firmly. He looks to his sister and then to the ground before sending Bran plummeting to the rocky ground below.
A Night's Watch deserter is tracked down outside of Winterfell, prompting swift justice from Lord Eddard "Ned" Stark, and raising concerns about the dangers in the lawless lands north of the Wall. Returning home, Ned learns from his wife Catelyn that his mentor, Jon Arryn, has died in the Westeros capital of King's Landing, and that King Robert is on his way north to offer Ned the position as the King's Hand. Meanwhile, across the Narrow Sea in Pentos, Viserys Targaryen hatches a plan to win back the throne by forging an allegiance with the nomadic Dothraki warriors by giving its leader, Khal Drogo, his lovely sister Daenerys' hand in marriage. Robert arrives at Winterfell with his wife, Queen Cersei, and other members of the Lannister family: her twin brother Jaime, dwarf brother Tyrion, and Cersei's son and heir to the throne, 12-year-old Joffrey. Unable to refuse his old friend and king, Ned prepares to leave for King's Landing, as Jon Snow decides to travel north to Black Castle to join the Night's Watch, accompanied by a curious Tyrion. But a startling act of treachery directed at young Bran may end up postponing their respective departures.
In the Seven Kingdoms of Westeros, a soldier survives an attack by the supernatural creatures known as the White Walkers. He rushes to Castle Winterfell, which is ruled by Eddard, who decapitates him for deserting his post. In King's Landing, the capital, Jon Arryn, the "Hand of the King", dies under mysterious circumstances. King Robert Baratheon, Eddard's longtime friend, travels to Winterfell, offering the position to him and also proposing marriage between his firstborn son Joffrey and Eddard's older daughter Sansa. Eddard's wife Catelyn receives a letter from her sister Lysa, Jon Arryn's widow, saying that she has escaped King's Landing and that Jon was murdered by the Lannisters, Queen Cersei's family. Catelyn burns the letter and tells Eddard about it, believing that the Lannisters are plotting against Robert. Eddard's youngest son, Brandon, climbs a tower, where he witness Cersei having sex with her twin brother, Jaime, who then pushes him out the window from a presumably fatal height. Meanwhile across the narrow sea in Essos, the exiled Prince Viserys Targaryen makes a deal with the Dothraki warlord Khal Drogo, who marries Viserys' younger sister, Daenerys, in exchange for an army to conquer Westeros and reclaim the Iron Throne.
Three men set out on horseback on a snowy landscape from the Wall. The young one sees smoke from a fire and creeps up on it. He sees bodies hacked to bits and heads on stakes, dismembered limbs all around, including women and children. He turns and runs. We see their bodies are laid out in a kind of symbol, like a ring. He is chastised by his leader for being a coward, and reminded of their mission and the punishment for desertion. His comrades go to check out the bodies, but find they've disappeared. One man finds what could be an organ in the snow. He's about to show it to the other man when something dark and sinister pops up out of snow and slashes him down. The remaining men run. They're chased by something that doesn't seem human. The creature catches one of the men and slices off his head. The remaining man drops to his knees and awaits his fate. Later, he stumbles across a field. Not dead. A band of men on horses intercept him. In Winterfell, Ned Stark (Sean Bean) watches his son Bran practice archery with the aid of Jon Snow, Ned's bastard son. Inside the castle, his young daughter Arya practices needlepoint. Bran lets fly his arrow and misses wildly. Suddenly another strikes the bullseye. They turn to see who let it go. It's Arya, showing up her brother. A man comes to report they captured a deserter from the Night's Watch. Ned's wife Catelyn asks him if he has to do what must be done. Ned says yes, and 10 year old Bran is coming to watch. They march the deserter to be beheaded. He tells Ned he saw White Walkers. Bran watches as his father beheads the man. Jon commends Bran for not looking away. After, Ned tells Bran that the White Walkers have been gone for thousands of years and the deserter must be crazy. He had to cut the man's head off himself because he passed the sentence, Ned explains. On the ride home they come upon a disemboweled elk and wonder what could have done it. They find a similarly hacked up wolf nearby, with five young pups. They believe they're a rare kind of wolf, a direwolf, of which there are only five south of the wall. Ned commands them killed because they wont survive without their mother. Jon suggests instead that, as the direwolf is the sigil of house Stark & Ned has 5 Stark children, the five pups go to the five Stark children. As they are about to leave, Jon finds a 6th pup, which he takes for his own...the runt of the litter for the bastard son. A funeral takes place in the grand cathedral. Ser Jaime Lannister checks on his twin sister, Queen Cersei Baratheon of the House of Lannister. She's worried the dead man, Jon Arryn, might have spilled her secret to her husband, the king. Cat tells her husband the news of Jon Arryn's death. He was like a father to Ned. King Robert of Baratheon and Queen Cersei are on the way to Winterfell with their entourage. Bran climbs to the top of the compound to see the hundreds approaching. His mom chides him not to climb. The king and queen arrive. The Starks line up to greet them. Prince Joffrey Baratheon of the House of Baratheon makes eyes at Sansa Stark, Ned's young daughter. They greet each other warmly. Arya is eager to see the imp. King Robert asks Ned to take him to the crypt. Down there, Robert says Arryn got sick suddenly and died. Robert asks Ned to come to King's Landing and serve as Hand of the King, to run his kingdom. He wants Ned to help him keep the iron throne. He suggests they join their houses by marrying his son Joffrey and Ned's daughter Sansa. We meet the imp, Tyrion Lannister, a dwarf. He is on the receiving end of a young woman's attention. His brother Jaime busts in to tell them the Starks are feasting them at sundown. He brings additional whores to help Tyrion work out his desires before then. Robert pays his respects to Ned's dead sister, who he was going to marry before the Targaryens killed her. He still feels strongly for her. Princess Daenerys Targaryen gets ready for her wedding. Prince Viserys comes to check on his sister, complete with examining her naked. The marriage is meant to solidify Viserys reign and not wake the dragon. Later, she meets her intended king, a savage killer who has never been defeated in battle. He says nothing, and rides off. Viserys advisor assures him Khal Drogo approved of her. Later, Viserys is talking about returning to rule. Daenerys announces she doesn't want to be Khal Drogo's queen. Viserys explains they need Drogo's army to retake their kingdom, and he would let all 40,000 of Drogo's men and horses have their way with her if it meant a return to power. In Winterfell, Sansa begs her mother to convince her dad to let her marry so she can be queen. Neds brother Benjen Stark arrives from the Night's Watch. Jon asks to return to the wall with him, but Benjen says he's not ready. After Benjen leaves, Jon meets Tyrion, who encourages him to wear the fact he's a bastard like armour, and then it can't be used to hurt him. He empathizes, saying all dwarves are bastards in their father's eyes. Benjen finds his brother Ned, who tells him the boy he beheaded was a true ranger. He seems surprised he deserted. Cersei watches distractedly as her husband gropes wenches at the feast. Sansa introduces herself. She's only 13. Jaime accosts Ned, taunting him to fight when he's back in town. Arya gets removed from the party for flicking food. Later at night, Ned tells his wife he doesn't want to go to the city. Cat doesn't want him to go either. There's a knock at their bedroom door. Its Maester Luwin, Ned's counselor. A rider brought a letter from Cat's sister. It was sent from the aerie. Cat reads it and her eyes get wide. She burns the letter. Her sister has fled the city. She said her husband Jon Arryn was murdered by the Lannisters, and they're plotting against the king. Luwin tells Ned he's the only one who can protect the king. At the wedding feast for Daenrys and Drogo, Viserys is eager to get his throne back. Daenrys watches two men try to have sex with a woman in the middle of a dance and end up cutting each other to bits. We learn that a Dothraki wedding without at least three deaths is considered a dull affair. Jorah Mormant, an exiled knight, brings song books to Daenrys. She also gets a gift of dragons eggs. Khal gets up and goes to his horse. Daenrys follows, and he gives her a white horse. As she's riding off, her brother tells her to make Drogo happy. Later, alone on the beach at sunset, she waits nervously as her new husband looks her over. She cries. He says only no as he slowly takes off her clothes and pushes her to the ground. Back in Winterfell, Ned prepares to ride with the King. As they set off, Bran climbs to the top of the compound walls again to watch his father ride away. Halfway up the wall he hears the sounds of people having sex. He sees Jaime with a woman bent over in front of him. It's his sister Cersei. She seems to be a willing participant. She shouts that Bran saw them. Jaime pulls Bran off the ledge. He assesses how high up they are, then he gives Bran a shove. "The things I do for love," he says.