Ep 9 Baelor
Seat of House Frey, the two identical fortresses known as the Twins provide the only crossing for miles on the Green Fork of the Trident River. A narrow pass, known as the stone bridge, connects the two strongholds to each other and for centuries, the Freys have charged a toll on riverland travelers who need safe passage across the stone bridge. In order to make his way across the river towards the Lannister encampments, Robb Stark enters in a marriage contract with a Frey daughter as part of his toll. Once on the other side, Robb manages to distract and surprise Jaime Lannister's forces and take the Kingslayer hostage.
Ep 10 Fire and Blood
Poised in the riverlands for further war with the Lannisters, Robb and Catelyn stark receive word of Ned's death. Similar news travels north to Winterfell and the Wall, where Jon reacts by deserting his post and seeking revenge... until his friends convince him Castle Black is the only place he belongs. Tyrion's father sends him south to King's Landing to serve as the new Hand, just as Arya escapes the city with the Night's Watch recruiter, Yoren.
The Spoiler Fairy@SpoilerTV