12. "The Old Gods and the New" (Season 2, Episode 6)
There's a riot goin' on. When King Joffrey's arrogance ignites an angry crowd in the streets of King's Landing, the mighty Hound goes on a killing spree to rescue Sansa from sexual assault, while uncle Tyrion slaps the shit out of his royal nephew for almost singlehandedly ending the Baratheon dynasty. The grounds of Winterfell, meanwhile, get just as bloody when its turncloak conqueror Theon Greyjoy finds himself forced to execute an old friend in full view of young Prince Bran Stark. Composer Ramin Djawadi's aching strings and Alfie Allen and Isaac Hempstead-Wright's gut-wrenching performances combine for a deadly, devastating scene.