In the new episode "Arctic Forge," four smiths are forced to contend with bitterly cold temperatures as they enter their frigid workplace, where they have been tasked with creating the Ulu, a trusty Inuit tool. First, though, they'll need to harvest the steel they require from a gigantic block of ice. Ultimately, two successful smiths return home to begin work on forging a Northern Long Seax, a single-edged knife worthy of a mighty Viking warrior. The smith who is more successful at completing this daunting task takes home the $10,000 prize.