Irish Mike and his team have orders to build a sword in the shape of a lightning bolt and an Indian chakram throwing weapon. Problems arise when welder Erik blows the budget on the chakram design and Irish Mike has trouble getting real sparks to shoot from the sword.
An eccentric, modern-day knight hires sword-maker Irish Mike to build a giant, dragon-shaped sword that shoots real flames. Assistant welder Erik bets Mike he can create a top-quality weapon of his own: a steel fist with deadly, interchangeable heads.
Irish Mike makes a huge sword shaped like a whale and another that opens like a folding knife. Later, things become dangerous as he accidentally ignites himself when testing a weapon by setting it on fire.
Irish Mike makes a huge sword reminiscent of Ancient Greek style for the "Strongest Woman in America" Olympic weightlifter Sarah Robles. Then, the team salvages old car parts to construct a massive flaming ax.
Irish Mike’s sword-making business may fold due to financial problems. The team makes a giant sword resembling the mythological three-headed beast Cerberus. Mike helps his daughter make a school project, but he gets carried away, with explosive results.
Sword-maker Irish Mike is hired to make a 34-inch sword for the world’s tallest sword swallower. Mike’s patience is tested when an obnoxious client keeps altering his order. Amelia has long-awaited news about the business’s profitability.