- Billy, Robert, congratulations.

You've made it to the final round of this competition.

Now, we're sending you back to your home forges

to recreate an iconic weapon that helped win World War II.

♪ ♪

The Scottish backsword.

♪ ♪

Now I'm gonna be pretesting Churchill's Scottish backsword.

The Scottish backsword is actually

a very unique weapon

because of that big guard basket hilt

that it has over there.

When you pick it up, you realize, wow,

this is on a straight on attack.

You're not able to really extend your wrist this way

for extension for thrusting and everything else.

It's gotta be at an angle because there's weight to that.

So I'll just find my way. Boom.

[gurgling, whooshes] - Yeah.

- If you're not a user,

sometimes you create the hilt just to protect it.

But you don't understand what's happening on the inside.

When you're moving the wrist,

when you're moving the hand inside there,

it shouldn't be hitting anything.

It shouldn't be an issue at all.

And the weight distribution of that

should not put a lot of stress on your wrist.

The basket hilt alone dictates

how your wrist will move in there

or can't move in there.

Four, five, punch.

What I loved about that broadsword

was that I was looking at the basket hilt--

it protects my hand, it protects me.

But at the same time, I'm in the feeling that,

hey, my best defense is an offense.

So to me, that's a piece of metal

that's surrounding my hand, I gotta punch with it.

It's an iron boxing glove.

♪ ♪

Oh, [bleep].

During the pretest, we do have a set plan,

but sometimes it changes.

Sometime the weapon performs better,

and we're expecting, okay,

you should get this down in five strikes.

After two, it's like, done.

♪ ♪

I will not be denied.