Historically, Game of Thrones has saved its "big" episodes for the second to the last of the season. Tonight's penultimate episode looks to be no different, focusing on the Battle at the Wall, featuring giants, mammoths and wildlings! Will Game of Thrones set another series high? Competition is high tonight with the continuing NBA Finals series on ABC. Last week Game of Thrones tied its series high with a 3.9 adults 18-49 rating. Make your predictions for tonight below!