'Game of Thrones' finally revealed the origin of the White Walkers

We know very little about the mysterious race of creatures called the White Walkers, but in the fifth episode of season 6, we finally learned how they came to be. Through Bran's vision, fans were able to watch as the first of their kind was created. Here's everything we know about one of the biggest threats to the realm so far.

Produced by Chris Snyder. Original reporting by Kim Renfro.

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