10. 'Two Swords' (Season 4, Episode 1)
The Season Four premiere revealed Game of Thrones to be a show transformed. Remember when the Lannisters were the antagonists? Now they're the main characters, with the surviving Starks pushed to the side. It's a hugely audacious shift, as if Katniss had died in the second Hunger Games movie and suddenly the series was about President Snow. The Hound-and-cub team-up that closes the episode further illustrates the show's narrative perversity: Raise your hand if you cheered when a little girl murdered a guy in cold blood!