Well, as we hoped would happen , Game of Thrones celebrated the coming of winter by bringing some serious heat. At nearly 80 minutes, “The Dragon and the Wolf” was the series’ longest to date, and it packed in what it could from the very beginning. Most of that was revelation rather than spectacle, but by the time the credits rolled, much of the show’s ambiguity had fallen away, leaving viewers with a clear view heading into the show’s eighth and final season.