Tomahawk and Bowie

Four smiths are put to the test when they must forge keys to unlock boxes of steel needed to make a knife.  After a couple of intense rounds, two competitors are are picked to head back to their home forges to recreate two American classics:  the Tomahawk and Bowie.  Which smith will honor American history by producing a weapon worthy of the title of Forged in Fire Champion and the$10,000 prize?