"Game of Thrones" Season 6 Episode 5 titled "The Door" will be more exciting as seen on the 36-second preview of the episode. To recall, siblings Jon Snow and Sansa Stark were reunited in episode 4 while Daenerys Targaryen used her fiery powers.

The hit fantasy drama of HBO teased the synopsis of the episode, according to Movie Fone: “Tyrion seeks a strange ally. Bran learns a great deal. Brienne goes on a mission. Arya is given a chance to prove herself.”

The synopsis tells that Bran's learning about a “great deal” could a payoff to the Tower of Joy flashback in episode 3, wherein he was brought out of his vision by Meera or it could refer to a new flashback.

Teasers reveal that Bran will encounter the Night’s King, who is the leader of the White Walkers. This scene was first seen in the trailer for show's season 6. With Bran having visions of the Night's King, it is speculated that there could be an undisclosed history between the Starks and the White Walkers.

HBO also shared images for episode five which gave fans a first look of red priestess Kinvara, played by Ania Bukstein, wearing a choker which is exactly like Melisandre’s.

Episode 5 will also feature the reunion of Sansa Stark and Littlefinger. The confrontation will surely be rough since Sansa is angry over the marriage arrangement with Ramsay Bolton, The Hollywood Reporter teased. Seen in the preview clip, Sansa asks: “Did you know about Ramsay?”

The title of the episode could be based on what Robin Arryn mentioned, which is the moon door. This refers to the "great big hatch in the middle of the Eyrie, the Arryns’ home, that drops some 600 feet into the rocky mountains below," Newsweek wrote.