Season Four of GoT combines storylines from three different books in George R.R. Martin's series of novels, specifically the second half of A Storm of Swords, along with elements of A Feast for Crows and A Dance with Dragons. As has been the case in prior seasons, this season has a series of parallel story arcs that sometimes intertwine with each other. Daenerys Targaryen captures Meereen and decides to rule as queen of Slaver's Bay until she can permanently defeat the slavers while trying to consolidate enough power to return to King's Landing and retake the throne. At The Wall, the Night's Watch prepares for an invasion by the Wildlings, and in King's Landing a murder scandal plays out throughout the season. Arya is traveling across Westeros with the Hound trying to take out people on her "list".There are a ton of extras for those who get the Blu-Ray set. There are 11 total commentary tracks (a couple of episodes get two commentary tracks and the third episode does not have any commentary). The commentaries generally rotate cast and crew/showrunner members and are all usually informative and/or entertaining. Then there are a couple of hours (give or take) of making-of and behind-the-scenes featurettes, some deleted scenes, a blooper reel, and some interactive material. And, the A/V quality is again top-notch. So, there is a lot there for people who prefer physical discs.Overall, the season is very good. This season included several new characters played by The season introduced a number of new cast members, including Pedro Pascal, Indira Varma, Michiel Huisman, and Dean-Charles Chapman. Some of them would be around for a short time and others would remain past this season. As has always been the case, no character is safe on this show and there are definitely major deaths this season. The series continues to be very compelling and is very well written and acted (with definite kudos going to Alfie Allen this season). Even though there are fewer characters in the show than in the books (and even some of the major storylines from the books removed from the show) it is sometimes hard to keep everything straight, but overall I do think the show does a good job balancing the large ensemble cast and the multiple story arcs. There is still a lot of violence and sex in the show, but if you have stuck with the show through the first three seasons that should not be an issue for you. This season is definitely worth watching.