The second to last episode of the season, “Beyond the Wall” leaves the living in a far more perilous position for the wars to come. North of the Wall, Tyrion’s latest disastrous plan unravels quickly, and in the end they succeed only at great cost to their campaign against the dead. South of the Wall, Arya continues to misunderstand and threaten her sister, Sansa, tearing apart a great house that has only just begun to rebuild.
As they all face an uncertain future, many of the characters spend time discussing the past. The men beyond the Wall reminisce together as they march north to steal a wight. In nearly every case, their perspectives on the past differ (the Hound and Tormund on Brienne, Jon and Jorah on the true owner of Longclaw, Gendry and the Brotherhood on selling the blacksmith to Melisandre, etc.), but they reach an understanding and common cause as the dead bear down on them. Arya and Sansa also discuss the past, but their misunderstandings and resentments go unresolved, putting both of them in mortal peril.