A Guide to Game of Thrones Season 7's Biggest Moments

In a decision that many of his northern countrymen are leery of, Jon Snow decides to meet with Daenerys Targaryen at Dragonstone. He knows he needs her help to defeat the White Walkers' army, plus her castle happens to be sitting upon a huge deposit of dragonglass, one of only a few substances that can kill the army of the dead.

It turns out to be a good decision on his part, though it very well could have been a trap, as his sister Sansa had feared.