Sword-maker Irish Mike creates a sword shaped like a whale. The weapon test goes horribly wrong when he sets the blade on fire and accidentally ignites himself.
Irish Mike make two giant weapons: a sword shaped like a lightning bolt, and an Indian throwing weapon. Erik goes rogue on the design, risking the entire budget.
Irish Mike creates an Ancient Greek-style sword for the Strongest Woman in America: Olympic weightlifter Sarah Robles. Then, Mike makes a giant, flaming axe.
Irish Mike is hired to build a giant dragon-shaped sword. When Mark designs it to shoot 30-foot flames, the team worries he may be taking his pyromania too far.
The team makes a giant sword resembling a mythological beast. Mike helps his daughter make a school project, but he gets carried away - with explosive results.
Mike is hired to make a 34-inch sword for the world's tallest sword swallower. Later, his patience is tested when an obnoxious client keeps altering his order.