Avsnitt 9

Four bladesmiths test their mettle in a rock quarry, where they're tasked with making blades using only harvested steel and coal forges. Over the course of two intense rounds, the smiths show their true grit constructing a blade while fighting the elements. After brutal tests designed to chip away at the competitors' resolve, only two smiths advance to the final round . Back at their home forges, they must recreate one of the most dangerous folding weapons in history — the Spanish Navaja.