Four bladesmiths are dispatched to the snowy winter tundra to forge a kukri with steel harvested from an old snowmobile.

It's anyone's game when four bladesmiths are tasked with forging blades from old toys using the San Mai technique.

On the 50th anniversary of the first steps on the moon, four bladesmiths compete to recreate a space-age M-1 NASA Survival Knife out of ball bearings.

It's a battle royale for four bladesmiths when they are tasked with forging signature blades with an integral knuckle duster from a steel cage and barbed wire.

Four bladesmiths are given a special assignment when they are tasked with forging Doug Marcaida's favorite blade: the Karambit.

Four bladesmiths must scavenge a construction site to salvage their own knife-making materials.

The odds are stacked against four bladesmiths when they must each forge a chopper in a distinct Damascus pattern. The ladder to success is full of twists as they struggle to achieve the specific look of each pattern.

Four bladesmiths must start at the bottom when they are tasked with creating ladder pattern Damascus knives from a real ladder.