Most Lethal Weapons (S01E02)

Across the ages, humanity has constantly sought innovative methods for warfare. Nations have been toppled and empires dismantled thanks to some of history's most formidable weapons. From the incendiary Greek Fire used in ancient battles to the composite bow that enabled the Mongols to build their vast empire, and the revolutionary chariot that transformed combat strategies to the enduringly effective caltrop, which still finds use in modern militaries—what will be the ultimate weapon that stands out and secures the title of the most transformative throughout history?