Will and his team of gunsmiths are hired to do the impossible — build a shotgun silencer. In the meantime, Will's friend Glenn shows up with a rare Civil War cannon worth $250,000 that the owner wants to fire 150 years after it last saw action. Daughter Stephanie keeps the shop running as Will does the research to see if the cannon can be fired safely.

Will and his firearms team have to combine two different weapons — an M16 machine gun and a shotgun — to build a Master Key "door breaching" gun for a SWAT team. For inspiration — and extra fun — Will and daughter Stephanie buy and fire a Grenade Launcher.

On a visit to the National World War II Museum in New Orleans, Will and Stephanie meet Woody Williams, a WWII Marine veteran who won the Medal of Honor on Iwo Jima As a tribute to this hero, Will and the team work to restore Woody's flamethrower, but Will has to conquer a childhood fear of fire just to ignite the weapon.

Will rallies the Red Jacket Firearms team to transform a 'Ma Deuce', a 1941 Browning M2 .50 caliber machine gun from a box of parts — into a fully automatic weapon. But daughter Stephanie must sell $25,000 in inventory to pay for Dad's new pet project.

Firearms expert Tiger McKee asks Will, owner of Red Jacket Firearms, to build a gun that Tiger calls the samurai sword for today's warrior - the lightweight AR-15 Katana rifle. Also, Historian Glenn finds a rare Civil War Coffee Grinder gun, but is it real?

Will, owner of Red Jacket Firearms, is asked to do something that's never been done — build an internal silencer for an AK-47. The AK is put through sand and ballistics tests. Also, Will builds an 18th century swivel gun replica and fires it from a boat.

Will and his Red Jacket crew build a bazooka for a WWII re-enactment client. To ensure that the bazooka rockets are safe, gunsmith Joe Meaux test fires it — and his target is Will. Also, Will surprises apprentice Kris with a generous birthday gift.

The local sheriff asks Will, founder of Red Jacket Firearms, to convert a semi-automatic Tommy Gun into a modern, fully automatic weapon. Also, forensics firearms expert Charlie Watson tackles the impossible: a samurai sword-like machete.

Will meets a security contractor who wants a vehicle mounted remote control machine gun built for his team in Afghanistan so American soldiers caught in kill zones don't have to roll down windows to return fire. Also, Will must repair a valuable antique pistol from 1840. Is it loaded?

Will and the Red Jacket team create a one-of-a-kind hunting gun mounted on an ATV to help a combat disabled Marine veteran. Also, with business booming, Will hires a new gunsmith -- with hilarious results.

The Red Jacket team works their magic to transform a heavy, tripod-mounted M1919 Browning Machine Gun into a shoulder-fire weapon for a local cop who wants to win a Machine Gun Shooting Contest. Also, the guys give new hire Flemm a hard time.

Will and the Red Jacket team build a 15-tube rocket launcher to combat pirates off the coast of Africa. Also, a rare 100-year-old Maxim gun worth $150,000 comes into the shop for repairs.

Vince, Red Jacket's lead gunsmith, creates a kill stick for alligator hunters - - a weapon used at point-blank range that humanely kills gators without ruining their valuable hides. Also, forensics expert Charlie, tests the ballistics of some unusual guns.

A Navy special teams boat gunner challenges Will to create a twin M16 gun mount that can fire hundreds of rounds a minute within changing magazines. Then, apprentice Kris gets busted when he gives an unauthorized shop tour to his girlfriend.

Will is inspired by Charlie's cool folding pellet gun to get the Red Jacket team to create a combination flashlight and survival kit that unfolds to become a semi-automatic M11 rifle. Then, new guy Flem is tested when Will tasks him to build a MG42 machine gun — aka "Hitler's Buzzsaw" — from scratch.