In the woods somewhere, Brienne and Catelyn take a break so they can talk about what exactly happened in Renly's tent. Brienne thinks the smoke thing looked like Stannis. Cartelyn thinks it was just a shadow in the shape of a man. Brienne agrees: "In the shape of Stannis." Cat says they'll get to Robb's camp the next day, and then she's going to Winterfell to see her kids. Brienne never knew her mother, which is very sad but also fairly irrelevant to the discussion at hand. But Cat's willing to play that game, so she says that her mother died on the birthing bed when Cat was very young. Brienne wants to go kill Stannis on account of her vow. And she's as good as any of his guards, so she figures she could just go stomp up to him and kill him. Cat assures her that Renly's death wasn't her fault. Brienne moans, "I only held him that once. As he was dying." Cat tries convincing her that Renly's enemies are Robb's enemies, so naturally the best way to hurt Renly's enemies would be to join Robb's fight. Brienne offers to serve Cat, but not Robb. Because Cat has "a woman's kind of courage." As long as she promises not to hold her back from Stannis, anyway. Cat promises, "When the time comes, I will not hold you back." Brienne kneels and lays her sword at Cat's foot. She swears by the old gods and the new, as does Cat. Cat's specific vow is, "I vow that you shall always have a place at my home and at my table and that I shall ask no service of you that might bring you dishonor."
Up at Winterfell (thus justifying its presence in the opening credits) Bran is holding court at Winterfell while a local farmer complains about bandits and wolves getting on his sheep. His sons are off fighting for Robb and he can't keep watch all the time on his own. Bran offers up a couple of orphan boys, which the famer's happy about. This whole time, Rickon is sitting next to Bran, smashing nuts in a very distracting fashion.
The next case Bran has to deal with is the news that Torrhen's Square is under siege! It's a raiding party led by the Mountain! Bran tells Ser Rodrik to round up 200 men to get out there. Maester Luwin thinks that's too many people, but Bran figures that if they don't defend their people, their people won't defend them.
Bran is carried out into the courtyard by Hodor while chatting with Osha. I shall remind you that Osha is the creepy wildling lady. And Hodor is the big guy that only says "Hodor." Bran says that Luwin's never heard of a three-eyed raven appearing in dreams. Osha shrugs and says that it can't be an omen after all. Bran accuses her of being a liar because she won't tell him what his dream means. She asks exactly what he saw, and he won't answer. Incidentally, he's being strapped into that horse-riding device Tyrion showed them. Bran says that he dreamed that the sea came to Winterfell. He saw waves crash against the gates, water flowing over the walls, and filling the castle. Ser Rodrik was drowned. She tells him the sea is hundreds of miles away. "Osha. The three-eyed raven. What do they say about it? North of the wall." She only says, "They say all sorts of crazy things north of the wall." A lot of help she is.