Jon Arryn, the Hand of the King, is dead. King Robert Baratheon plans to ask his oldest friend, Eddard Stark, to take Jon's place. Across the sea, Viserys Targaryen plans to wed his sister to a nomadic warlord in exchange for an army.

While Bran recovers from his fall, Ned takes only his daughters to Kings Landing. Jon Snow goes with his uncle Benjen to The Wall. Tyrion joins them.

Lord Stark and his daughters arrive at King's Landing to discover the intrigues of the king's realm.

Eddard investigates Jon Arryn's murder. Jon befriends Samwell Tarly, a coward who has come to join the Night's Watch.

Catelyn has captured Tyrion and plans to bring him to her sister, Lysa Arryn, at The Vale, to be tried for his, supposed, crimes against Bran. Robert plans to have Daenerys killed, but Eddard refuses to be a part of it and quits.

While recovering from his battle with Jamie, Eddard is forced to run the kingdom while Robert goes hunting. Tyrion demands a trial by combat for his freedom. Viserys is losing his patience with Drogo.

Robert has been injured while hunting and is dying. Jon and the others finally take their vows to the Night's Watch. A man, sent by Robert, is captured for trying to poison Daenerys. Furious, Drogo vows to attack the Seven Kingdoms.

Eddard and his men are betrayed and captured by the Lannisters. When word reaches Robb, he plans to go to war to rescue them. The White Walkers attack The Wall. Tyrion returns to his father with some new friends.

Robb goes to war against the Lannisters. Jon finds himself struggling on deciding if his place is with Robb or the Night's Watch. Drogo has fallen ill from a fresh battle wound. Daenerys is desperate to save him.

With Ned dead, Robb vows to get revenge on the Lannisters. Jon must officially decide if his place is with Robb or the Night's Watch. Daenerys says her final goodbye to Drogo.

As Robb Stark and his northern army continue the war against the Lannisters, Tyrion arrives in King’s Landing to counsel Joffrey and temper the young king’s excesses. On the island of Dragonstone, Stannis Baratheon plots an invasion to claim his late brother’s throne, allying himself with the fiery Melisandre, a strange priestess of a stranger god. Across the sea, Daenerys, her three young dragons, and the khalasar trek through the Red Waste in search of allies, or water. In the North, Bran presides over a threadbare Winterfell, while beyond the Wall, Jon Snow and the Night’s Watch must shelter with a devious wildling.

In the wake of a bloody purge in the capital, Tyrion chastens Cersei for alienating the king’s subjects. On the road north, Arya shares a secret with Gendry, a Night’s Watch recruit. With supplies dwindling, one of Dany’s scouts returns with news of their position. After nine years as a Stark ward, Theon Greyjoy reunites with his father Balon, who wants to restore the ancient Kingdom of the Iron Islands. Davos enlists Salladhor Saan, a pirate, to join forces with Stannis and Melisandre for a naval invasion of King’s Landing.

At the Red Keep, Tyrion plots three alliances through the promise of marriage. Catelyn arrives in the Stormlands to forge an alliance of her own, but King Renly, his new wife Margaery, and her brother Loras Tyrell have other plans. At Winterfell, Luwin tries to decipher Bran’s dreams.

Joffrey punishes Sansa for Robb’s victories, and Tyrion scrambles to temper the king’s cruelty. Catelyn entreats Stannis and Renly to unite against the Lannisters. Dany and her khalasar arrive at the prosperous city of Qarth. Tyrion coerces a relative into being his eyes and ears. Arya and Gendry are taken to Harrenhal, where their lives are in the hands of Ser Gregor Clegane. Stannis orders Davos to smuggle Melisandre into a secret cove.

The Baratheon rivalry ends, driving Catelyn to flee and Littlefinger to act. At King’s Landing, Tyrion’s source alerts him to Joffrey’s defense plan - and a mysterious secret weapon. Theon sails to the Stony Shore to prove he’s worthy to be called Ironborn. At Harrenhal, Arya receives a promise from Jaqen H’ghar, one of the prisoners she saved from the Gold Cloaks. The Night’s Watch arrive at the Fist of the First Men, an ancient ringfort where they hope to stem the wildings' advance.

Theon seizes control of Winterfell. Jon captures a wildling, named Ygritte and is given a chance to prove himself. At King's Landing, after the Lannisters send Myrcella off to be married, the people begin to turn against King Joffrey. Arya comes face to face with a surprise visitor. Daenerys looks to buy ships to sail for the Seven Kingdoms.

Jamie meets a distant relative. Daenerys receives an invitation to the House of the Undying. Theon leads a search party. Jon loses his way in the wilderness. Cersei counsels Sansa.

Betrayal befalls Robb. Jon and Qhorin are taken prisoner by the wildlings. Theon receives a visitor at Winterfell and must make an important decision. Meanwhile, Stannis is just days away from reaching King's Landing and Tyrion prepares for his arrival. At Harrenhal, Arya, Gendry and Hot Pie plan their escape.

Tyrion and the Lannisters fight for their lives as Stannis’ fleet assaults King’s Landing.

Tyrion awakens to a changed situation. King Joffrey doles out rewards to his subjects. As Theon stirs his men to action, Luwin offers some final advice. Brienne silences Jaime. Arya receives a gift from Jaqen. Dany goes to a strange place. Jon proves himself to Qhorin.