In the final round of the Battle of the Branches the winning Soldier, Airman, Marine and Sailor return to the forge for the ultimate showdown. Tasked with replicating an iconic M3 Trench Knife from layered damascus in only three hours, the smiths work to showcase their expertise and push themselves to go above and beyond. After a last minute flaw sends one smith packing, the remaining three veterans must face a brutal bout of testing. Ultimately two servicemen persevere and head home to recreate a legendary sword: General George Washington's Lion-headed Cuttoe. Which smith will earn bragging rights for his branch, be crowned Battle of the Branches Champion, and take home the biggest prize in Forged in Fire history: $50,000?