Claim: The Winds of Winter is not an episode.
Evidence: `` The Winds of Winter '' is the tenth and final episode of the sixth season of HBO 's fantasy television series Game of Thrones , and the sixtieth overall.
Critics praised the Great Sept explosion , Lena Headey 's performance , Arya 's revenge on the Freys , the resolution to the Tower of Joy flashback , and Daenerys going to Westeros as highlights of the episode.
In the United States , the episode achieved a viewership of 8.89 million in its initial broadcast , making it the highest rated episode in the series ' history.