Stannis dies in some epic manner by taking back Winterfell. Jon wakes up and goes "|:[" and goes south because he is untouchable for waking up right in the middle of his funeral pyre and no crow is gonna stand in his way. Sticks Longclaw right into Melisandre, and heads to Winterfell. Takes all of Stannis' left over guys and rallies the North. Sansa offs Littlefinger spectacularly with her Chekhov's Hairnet and rallies the Vale with Jon.
They get ready to kick some Other ass. Only for Aegon and his crew to get horns locked with Dany who finally ♥♥♥♥ing arrives. With Ironborn ships. Shes all "FIRE AND BLOOD!" and Aegon is all "nope.avi" and they fight in the Dance of the Dragons part deux. Dany (sadly) wins. Jon goes "argh." and Howland is all "hey guess what. R+L=J!" and Jon is all "mind blown."
And Jon and Dany end up fighting each other. Lannisters implode from within and Cersei dies after Jaime strangles her ass with his golden hand.
Scene ends with Jon standing over Dany with Longclaw in his hands while she bleeds to her death.