5 important things you probably missed on this week's 'Game of Thrones'

One of Sam's last acts before fleeing from his family home with Gilly (Hannah Murray) and the child was to steal Heartsbane, the sword that has been in his family for some 500 years.

Why risk his father's wrath? As the old man said, it's made of Valyrian steel — one of the few materials that can kill White Walkers, aside from dragonstone. We only know of two other swords made of that steel, Jon Snow's and Brienne of Tarth's (Gwendoline Christie).

Average people only see their own lives flash before their eyes in near-death experiences. For Bran, it's way more than that.

"Bran had to absorb the history of the world, the entire history of the world in imagery," cocreator David Benioff said in the behind-the-episode video. "There's a part of him that's no longer Bran Stark, it's the Three-Eyed Raven. And the Three-Eyed Raven isn't entirely human."

This also marks the first time we've seen the legendary Mad King — Daenarys' father and the last member of the House Targaryen to sit on the Iron Throne — on-screen. What could that mean? We'll have to wait and see.

The last time we saw Edmure Tully (Tobias Menzies), who's Catelyn Stark's (Michelle Fairley) brother, was right after he was spared from The Red Wedding murders on season three.

He took Robb Stark's place (Richard Madden) in the wedding to Roslin Frey (Alexandra Dowling). So he has been in the dungeons all this time? Presumably, so has Roslin.

Now he's been brought out as a bargaining chip in the battle over his family's land at Riverrun.

Did that rousing speech Daenerys gave at the end of the episode sound familiar at all? It should have, because much of it was derived from Khal Drogo on season one.

"One of our favorite scenes from season one was watching Khal Drogo deliver a speech to his gathered khalasar," cocreator David Benioff said in video about the episode. "That speech certainly lingered in Daenerys' mind. She's echoing almost the exact same language when she's talking to the Dothraki now."

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