S06E04: The O-Katana
For the 100th episode, four bladesmiths are tasked with forging a chopper and must choose from a mammoth pile of metals and materials from all previous 99 episodes; the two finalists head home to re-create the O-Katana.
Previous Episode 
Season 1
Japanese Katana
S1E1 / 22 Jun 2015
Chakram
S1E2 / 29 Jun 2015
Viking Battle Axe
S1E3 / 06 Jul 2015
Katar
S1E4 / 13 Jul 2015
Crusader Sword
S1E5 / 20 Jul 2015
The Elizabethan Rapier
S1E6 / 27 Jul 2015
The Roman Gladius
S1E7 / 03 Aug 2015
The Moro Kris
S1E8 / 10 Aug 2015
Season 2
The War Hammer
S2E1 / 16 Feb 2016
Khopesh
S2E2 / 23 Feb 2016
The Scottish Claymore
S2E3 / 01 Mar 2016
Spiked Shield
S2E4 / 08 Mar 2016
Viking Sword
S2E5 / 15 Mar 2016
Nepalese Kukri
S2E6 / 22 Mar 2016
The Shotel
S2E7 / 29 Mar 2016
The Cutlass
S2E8 / 06 Apr 2016
Khanda
S2E9 / 12 Apr 2016
Tabar
S2E10 / 19 Apr 2016
Season 3
Champion Edition / Scottish Claymore
S3E1 / 23 Aug 2016
Fan Favorites / Hook Sword
S3E2 / 30 Aug 2016
Butterfly Swords
S3E3 / 06 Sep 2016
The Falcata
S3E4 / 13 Sep 2016
Kora Sword
S3E5 / 20 Sep 2016
Hunga Munga
S3E6 / 27 Sep 2016
The Boar Spear
S3E7 / 04 Oct 2016
Xiphos Sword
S3E8 / 11 Oct 2016
The Pandat
S3E9 / 18 Oct 2016
Zulu Iklwa
S3E10 / 25 Oct 2016
Champions Edition / The Pata
S3E11 / 10 Jan 2017
The Zweihander
S3E12 / 17 Jan 2017
Cavalry Saber
S3E13 / 24 Jan 2017
The Naginata
S3E14 / 31 Jan 2017
The Haladie
S3E15 / 07 Feb 2017
Redemption / Viking Sword
S3E16 / 14 Feb 2017
Season 4
Judges Pick
S4E1 / 11 Apr 2017
Deer Horn Knives
S4E2 / 11 Apr 2017
The Katzbalger
S4E3 / 18 Apr 2017
Makraka
S4E4 / 25 Apr 2017
Fans' Choice
S4E5 / 02 May 2017
Akrafena
S4E6 / 09 May 2017
Talwar
S4E7 / 16 May 2017
The Cinquedea
S4E8 / 23 May 2017
The Charay
S4E9 / 06 Jun 2017
Sword Breaker Redemption
S4E10 / 13 Jun 2017
Master & Apprentice
S4E11 / 11 Jul 2017
Ngombe Ngulu
S4E12 / 18 Jul 2017
The Shamshir
S4E13 / 25 Jul 2017
The Kachin Dao
S4E14 / 01 Aug 2017
The Gladiators' Scissor
S4E15 / 08 Aug 2017
The Kampilan
S4E16 / 22 Aug 2017
The Kpinga
S4E17 / 29 Aug 2017
The Yatagan
S4E18 / 12 Sep 2017
International Championship / The Spadroon
S4E19 / 03 Oct 2017
Tabar-Shishpar
S4E20 / 10 Oct 2017
Ultimate Champions Edition
S4E21 / 17 Oct 2017
Knights Templar
S4E22 / 24 Oct 2017
Viking Edition
S4E23 / 31 Oct 2017
Season 5
Rookies Edition (The War Golok)
S5E1 / 13 Mar 2018
The Schiavona
S5E2 / 20 Mar 2018
The Sica
S5E3 / 27 Mar 2018
The Jumonji Yari
S5E4 / 03 Apr 2018
The Kabyle Flyssa
S5E5 / 10 Apr 2018
Ultimate Team Challenge (The Chinese Dao)
S5E6 / 17 Apr 2018
The Karabela
S5E7 / 24 Apr 2018
The Zande Spear
S5E8 / 01 May 2018
The Navaja
S5E9 / 08 May 2018
The German Halberd
S5E10 / 15 May 2018
The Two-Handed Sword
S5E11 / 22 May 2018
Military History Tribute (Naval Cutlass)
S5E12 / 28 May 2018
Horseman's Axe
S5E13 / 29 May 2018
Lion Spear
S5E14 / 05 Jun 2018
Kelewang
S5E15 / 12 Jun 2018
Bagh Nakh
S5E16 / 19 Jun 2018
Glaive Guisarme
S5E17 / 26 Jun 2018
Pioneer Sword
S5E18 / 03 Jul 2018
Wind and Fire Wheels
S5E19 / 17 Jul 2018
Smallsword
S5E20 / 24 Jul 2018
Celtic Anthropomorphic Sword
S5E21 / 31 Jul 2018
The Kilij
S5E22 / 07 Aug 2018
The Sawback Hunting Sword
S5E23 / 14 Aug 2018
The Arming Sword
S5E24 / 21 Aug 2018
The Sengese
S5E25 / 28 Aug 2018
The Qinglong Ji
S5E26 / 04 Sep 2018
Hollywood Edition (Hattori Hanzō Katana)
S5E27 / 12 Sep 2018
The Steel Crossbow
S5E28 / 19 Sep 2018
The Landsknecht Sword
S5E29 / 26 Sep 2018
Tournament Round 1 (Farriers) - The Mortuary Sword
S5E30 / 03 Oct 2018
Tournament Round 2 (Armorers) - The Hooded Katar
S5E31 / 10 Oct 2018
Tournament Round 3 (Blacksmiths) - The Knightly Pole Axe
S5E32 / 17 Oct 2018
Tournament Round 4 (Modern Metalworkers) - The Flamberge Rapier
S5E33 / 24 Oct 2018
Tournament Championship (Nodachi)
S5E34 / 31 Oct 2018
Slasher Edition (Grim Reaper's Scythe)
S5E35 / 07 Nov 2018
Steel Takedown Bow
S5E36 / 14 Nov 2018
Bardiche
S5E37 / 21 Nov 2018
The Pipe Tomahawks
S5E38 / 12 Dec 2018
The Ring Hilted Sword
S5E39 / 19 Dec 2018
Season 6
Long Road to Redemption (1)
S6E1 / 06 Feb 2019
Long Road to Redemption (2)
S6E2 / 13 Feb 2019
Washington's Colichemarde
S6E3 / 20 Feb 2019
The O-Katana
S6E4 / 27 Feb 2019
The Hussar Saber
S6E5 / 06 Mar 2019
Barbarian Sword
S6E6 / 13 Mar 2019
The Javanese Kris
S6E7 / 17 Apr 2019
General Yamashita's Gunto
S6E8 / 24 Apr 2019
The Greek Kopis
S6E9 / 01 May 2019
Branch Battle: Army
S6E10 / 08 May 2019
Branch Battle: Air Force
S6E11 / 08 May 2019
Branch Battle: Marines
S6E12 / 15 May 2019
Branch Battle: Navy
S6E13 / 15 May 2019
Branch Battle: Finals
S6E14 / 22 May 2019
The Nagamaki
S6E15 / 29 May 2019
Attila's Sword of Mars
S6E16 / 05 Jun 2019
The Partizan
S6E17 / 12 Jun 2019
The Messer Sword
S6E18 / 19 Jun 2019
The Ram Dao
S6E19 / 26 Jun 2019
The Foot Artillery Sword
S6E20 / 03 Jul 2019
Astronaut Knife
S6E21 / 17 Jul 2019
The Lochaber Axe
S6E22 / 24 Jul 2019
The Cane Sword
S6E23 / 31 Jul 2019
The Boar Sword
S6E24 / 07 Aug 2019
The Falchion
S6E25 / 14 Aug 2019
Napoleon's Saber
S6E26 / 21 Aug 2019
The Bhuj
S6E27 / 28 Aug 2019
Blackbeard's Cutlass
S6E28 / 04 Sep 2019
Kung Fu Edition
S6E29 / 18 Sep 2019
Genghis Khan's Sword
S6E30 / 25 Sep 2019
Season 7
Sword Of Perseus
S7E1 / 09 Oct 2019
General Patton's Sabre
S7E2 / 16 Oct 2019
The Jian Sword
S7E3 / 23 Oct 2019
The Rock-Throwing Crossbow
S7E4 / 23 Oct 2019
Halloween Edition
S7E5 / 30 Oct 2019
The Boa-Zande Sword
S7E6 / 30 Oct 2019
The Musketeer Rapier
S7E7 / 06 Nov 2019
The Tizona of El Cid
S7E8 / 06 Nov 2019
Military Tribute
S7E9 / 13 Nov 2019
Revolutionary War Spontoon
S7E10 / 13 Nov 2019
The Barbarian Spatha
S7E11 / 20 Nov 2019
Family Edition
S7E12 / 27 Nov 2019
Frankish Throwing Axes
S7E13 / 11 Dec 2019
A Very Forged Christmas
S7E14 / 18 Dec 2019
The Chinese War Sword
S7E15 / 01 Jan 2020
The Sword in the Stone
S7E16 / 08 Jan 2020
Charlemagne's Sword
S7E17 / 15 Jan 2020
The Spanish Conquistador Sword
S7E18 / 22 Jan 2020
The Pira
S7E19 / 29 Jan 2020
French Pioneer Sword
S7E20 / 29 Jan 2020
Darb Sri Gun Chai Battle Sword
S7E21 / 05 Feb 2020
Zulu War Axe
S7E22 / 05 Feb 2020
The Chinese Zhanmadao
S7E23 / 11 Mar 2020
The German Dussage
S7E24 / 18 Mar 2020
First Responders Edition
S7E25 / 25 Mar 2020
Game of Forge
S7E26 / 01 Apr 2020
The Ikakalaka
S7E27 / 08 Apr 2020
Samurai Showdown
S7E28 / 15 Apr 2020
Baby Boomer vs Gen Z
S7E29 / 22 Apr 2020
The Nimcha
S7E30 / 29 Apr 2020
Titanium Smackdown
S7E31 / 06 May 2020
Tomahawk and Bowie
S7E32 / 15 Jul 2020
Japanese Ono
S7E33 / 22 Jul 2020
Super Champion Edition
S7E34 / 29 Jul 2020
The Boateng Saber
S7E35 / 05 Aug 2020
Summer Forging Games Part 1
S7E36 / 12 Aug 2020
Summer Forging Games Part 2
S7E37 / 19 Aug 2020
Season 8
Veteran's Knife Special
S8E1 / 18 Nov 2020
The Deadly Vajra-Mushti
S8E2 / 25 Nov 2020
The Legendary Sword of Saladin
S8E3 / 02 Dec 2020
M1905 Springfield Bayonet
S8E4 / 09 Dec 2020
The Giant Sword of William Wallace
S8E5 / 16 Dec 2020
Forged in Fire Christmas
S8E6 / 23 Dec 2020
Judges' Home Forge Battle
S8E7 / 30 Dec 2020
The Massive Maguro Bocho
S8E8 / 06 Jan 2021
Teeth of the Tegha
S8E9 / 13 Jan 2021
Headhunters Revenge
S8E10 / 17 Feb 2021
Russian Special Forces Spetsnaz
S8E11 / 24 Feb 2021
Machete of the Amazons
S8E12 / 03 Mar 2021
San Mai Mystery
S8E13 / 10 Mar 2021
Second Chance Tournament: Part 1
S8E14 / 24 Mar 2021
Second Chance Tournament: Part 2
S8E15 / 31 Mar 2021
Second Chance Tournament: Finals
S8E16 / 07 Apr 2021
Memory Game
S8E17 / 14 Apr 2021
WWE Edition
S8E18 / 21 Apr 2021
Arctic Forge
S8E19 / 28 Apr 2021
Civil War Battle
S8E20 / 05 May 2021
Casino Challenge
S8E21 / 12 May 2021
Deadly Duo
S8E22 / 19 May 2021
Fire and Water
S8E23 / 26 May 2021
Sledgehammer Showdown
S8E24 / 09 Jun 2021
Medieval Mystery Sword
S8E25 / 16 Jun 2021
Pick Your Poison
S8E26 / 23 Jun 2021
Forge of Fear
S8E27 / 30 Jun 2021
The Terrifying Tuareg Takoba
S8E28 / 07 Jul 2021
Barrel Full of Mystery
S8E29 / 14 Jul 2021
Armed Forces Tournament Part 1
S8E30 / 21 Jul 2021
Armed Forces Tournament Part 2
S8E31 / 28 Jul 2021
Armed Forces Tournament Finale
S8E32 / 04 Aug 2021
Judges Takeover: Doug Marcaida
S8E33 / 08 Dec 2021
Young Guns Challenge
S8E34 / 08 Dec 2021
Judges Takeover: Ben Abbott
S8E35 / 15 Dec 2021
The Dark Side
S8E36 / 15 Dec 2021
Judges Takeover: J Neilson
S8E37 / 22 Dec 2021
Damascus 500
S8E38 / 29 Dec 2021
Judges Takeover: Dave Baker
S8E39 / 29 Dec 2021
The Firangi Sword
S8E40 / 29 Dec 2021
Fan's Choice
S8E41 / 05 Jan 2022
Beat the Unbeaten: Round One
S8E42 / 12 Jan 2022
Beat the Unbeaten: Scrap Steel Challenge
S8E43 / 12 Jan 2022
Beat the Unbeaten: Broken Blade Revenge
S8E44 / 19 Jan 2022
Beat the Unbeaten: Back for Revenge
S8E45 / 26 Jan 2022
Beat the Unbeaten: The Final Showdown
S8E46 / 02 Feb 2022
Season 9
Crushed Car Challenge
S9E1 / 30 Mar 2022
Blackout
S9E2 / 06 Apr 2022
The Ninja's Sword
S9E3 / 13 Apr 2022
Sheet Metal Challenge
S9E4 / 20 Apr 2022
Blades Gone Wild
S9E5 / 27 Apr 2022
Double Trouble Blades
S9E6 / 04 May 2022
The Knife Fight
S9E7 / 25 May 2022
The Gaucho's Revenge
S9E8 / 01 Jun 2022
Sergeant Hayden's Sword
S9E9 / 08 Jun 2022
Revolutionary War Forge
S9E10 / 15 Jun 2022
Flip the Forge
S9E11 / 22 Jun 2022
Out to Sea
S9E12 / 29 Jun 2022
Gladiators of the Forge: Let the Battles Begin
S9E13 / 06 Jul 2022
Gladiators of the Forge: The Battles Continue
S9E14 / 13 Jul 2022
Gladiators of the Forge: Viking vs Gladiator
S9E15 / 20 Jul 2022
Gladiators of the Forge: A Champion's Quest
S9E16 / 27 Jul 2022
Gladiators of the Forge: The Final Battles
S9E17 / 03 Aug 2022
The Notorious Naga
S9E18 / 10 Aug 2022
The Fastest Blade in the West
S9E19 / 17 Aug 2022
Best in Damascus
S9E20 / 24 Aug 2022
Friend or Foe
S9E21 / 31 Aug 2022
Supersized: Sword
S9E22 / 05 Oct 2022
Supersized: Elephant Sword
S9E23 / 12 Oct 2022
Supersized: 5 Ton Challenge
S9E24 / 19 Oct 2022
Forged in Fire: Marvel's Midnight Suns
S9E25 / 26 Oct 2022
Supersized: Hog Wild
S9E26 / 02 Nov 2022
Season 10
On the Road: Texas Showdown
S10E1 / 04 Oct 2023
On the Road: Montana Face-Off
S10E2 / 04 Oct 2023
On the Road: Appalachian Showdown
S10E3 / 11 Oct 2023
On the Road: Kalamazoo Combat
S10E4 / 18 Oct 2023
On the Road: American Champion
S10E5 / 25 Oct 2023
The Frankenstein Challenge
S10E6 / 01 Nov 2023
Chef's Special
S10E7 / 08 Nov 2023
Springtime for Napoleon
S10E8 / 15 Nov 2023
Instruments of Death: Masters of the Siege
S10E9 / 02 Oct 2024
Beat the Unbeaten: Mastering the Mystery
S10E10 / 09 Oct 2024
Beat the Unbeaten: Conquering the Kachin Dao
S10E11 / 16 Oct 2024
Beat the Unbeaten: A Cutlass Above
S10E12 / 23 Oct 2024
Beat the Unbeaten: Off the Hook
S10E13 / 30 Oct 2024
Beat the Judges: Test of the Best
S10E14 / 06 Nov 2024
Beat the Judges: Machete Master
S10E15 / 13 Nov 2024
Beat the Judges: Tackling the Tizona
S10E16 / 20 Nov 2024
Beat the Judges: Shamshir Showdown
S10E17 / 27 Nov 2024
Champion's Cup: Quest for Glory
S10E18 / 06 Aug 2025
Champion's Cup: Survival of the Fittest
S10E19 / 13 Aug 2025
Doug Marcaida's Secrets of the Forge
S10E20 / 13 Aug 2025
Champion's Cup: Hunt for Victory
S10E21 / 20 Aug 2025
Ben Abbott's Secrets of the Forge
S10E22 / 20 Aug 2025
Siberian Forge
S10E23 / 27 Aug 2025
The Melting Point
S10E24 / 27 Aug 2025
Damascus Go Mai Challenge
S10E25 / 03 Sep 2025
Pimp My Knife
S10E26 / 10 Sep 2025
Junkyard Meltdown
S10E27 / 17 Sep 2025
Forged Flashbacks
S10E28 / 24 Sep 2025
David Lain Baker
Self - Judge
