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.

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 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.

Sansa says too much. Shae asks Tyrion for a favor. Jaime finds a way to pass the time, while Arya encounters the Brotherhood Without Banners.

Tyrion shoulders new responsibilities. Jon is taken to the Fist of the First Men. Daenerys meets with the slavers. Jaime strikes a deal with his captors.

Tyrion gains an unlikely ally; Daario asks Dany to allow him to do what he does best; Jon's warnings about the vulnerability of the Wall are ignored; Brienne follows a new lead.

Daenerys receives an unexpected visitor. Jon faces a revolt. Tyrion plans the conquest of Westeros.