Forjado a fuego

In a throwback to the Iron Age, four smiths must forge daggers as if they were in 650 B.C., relying solely on coal forges and Brite Force to get the job done. Ultimately, to competitors return to present day and head back to their home forges to recreate Arya Stark's Needle from Game of Thrones. Which smith will forge a blade worthy of the Iron throne and receive a check for $10,000?