Watch Ancient Discoveries Season 6 Episode 8 Online

The show reviews ancient Roman navy SEAL techniques of capturing enemy ships from underwater and replicates the feat. The tactics of ancient Roman war dog units are explored including a historically savage breed of dog, the Mastiff. Finally, the secrets of the samurai sword and how it was made is reviewed and they build and test an ancient Horro, a Japanese device that could protect a galloping cavalryman from arrow fire using thin silk.