Four bladesmiths are pushed to their limits when they each must forge a signature blade from small springs of steel. Wonky welds and broken billets cause major setbacks that must be corrected before the time runs out. Ultimately, two smiths manage to turn their setbacks into comebacks to secure a spot in the final round where they must recreate the deadly Horseman's Axe.

The bladesmiths must make their signature blades out of only drill bits and a chunk of mild steel, but untwisting the bits and combining the two steels proves almost impossible. After two rounds, only two smiths survive the chopping block and are sent back to their home forges to recreate a beautiful, but deadly Indonesian sword — the Kelewang. A final round of testing proves that victory lies at the junction between form and function.