Four bladesmiths fight fire with fire when they must dismantle a forge and use that steel to construct a blade. The competition gets heated as the smiths struggle to salvage enough material to create a san mai billet, leading one competitor to crack under the pressure. After a punishing round of tests, the final two return to their home forges where they have just four days to recreate one of history's most elegant weapons of war: The Partizan.
