Forged in Fire (2015)

S4E4 Makraka

In a surprising turn during the initial round, four bladesmiths discover they must set aside their personal styles and create a karambit, a uniquely curved knife that looks like a claw. As the competition narrows down to the final two contestants, they are challenged to forge the Makraka, one of the most lethal weapons from African history, within a demanding timeframe of five days.