First off all, there is still plenty of action up North, including Jon (Kit Harington) meeting with Mance. Will he actually kill him, like he's planning? Meanwhile, we'll also check in with Bran (Isaac Hempstead Wright) and co., and, of course, Tyrion's (Peter Dinklage) situation is looking very dire in King's Landing. Also, dragons! Gotta have the dragons.
Want to know more? Here's what the official synopsis of the episode has to say: "Circumstances change after an unexpected arrival from north of the Wall; Dany must face harsh realities; Bran learns more about his destiny; Tyrion sees the truth about his situation."