Sansa: "This isn't good. I'm getting confirmed reports of White Walkers leaving Castle Black. We need to get out of here before this really out of hand"
Jon presses on fighting through hordes of Lannister forces. As the battles progress, it becomes more and more clear that the Knights have elected to follow Tyrion and turn on the more brutish warriors sent from House Clegane. Finally he fights his way through a pitched battle at the Mausoleum of the King's Hand to find Cersei's Maester slowly turning into a White Walker as Cersei and the Mountain leads Arya and Sam away.
Jon: "Your pals. Where are they going?"
Maester: "To Winterfell, to finish what we started and this time there won't be any of you left to stop us."
Sansa: "I knew that the Lannisters were good at repurposing the First Men's structures. But this is beyond anything we've seen before. The Iron Throne's castle is a wagon. Get abord that wagon is all that matters."
Cut to Casterly Rock. Jaime has just helped Tryion fight through hundreds of Clegane's troops to find Sam in control of a large Lannister seige wagon. After some banter they fight their way into a temple where Cersei left the Mountain to light a cache of Wildfire large enough to destroy all of Westeros. The two form an uneasy alliance as they finally put the giant down.
Cut to Cersei on the now mobile Iron Throne.
On one of the towers the Hound sees the castle approaching in the distance. An archer announce a new enemy.
The Hound: "It isn't one of ours. Take it down."
Jon shouting: "This is Jon Snow!"
The Hound: "Jon, do you mind telling me what you're doing on that?"
Jon: "Sir, Finishing this fight"
Credits roll.
Scenes from next season:
The Night's King: "Silence fills the empty grave, now that I am gone. But my mind is not at rest, since questions linger on. I will ask and you will answer."
Sansa: : "OK, Shoot."
