This season's Game of Thrones episode "Hardhome" was the episode of the year — and, arguably, the best single episode in the entire run of the show. If you wondered how HBO managed to generate all that chaos on a TV-sized budget, this VFX breakdown from El Ranchito Imagen Digital won't help. It only showcases the immense amount of work that went into Jon Snow and Co.'s epic confrontation with the White Walkers and their reanimated minions.