Season six keeps barreling ahead, and in this episode we visit Braavos for a resolution of the House of Black & White storyline, a reintroduction to the Brotherhood Without Banners, some drinking and comedy in Mereen, a royal decree in King’s Landing, and a joyous reunion at Riverrun. (Edmure and the Blackfish? Jamie and Brienne? No, Podrick and Bronn!) Also: Old Lady Clegane’s boys sure are good at killing....