In the ultimate search for a HUMAN WEAPON, mixed martial artist Jason Chambers and football pro Bill Duff put their bodies on the line as they train in the most lethal forms of combat before going toe-to-toe with masters of each fighting style.
Jason Chambers and Bill Duff venture back to the Land of the Rising Sun to study one of the most mysterious, subversive, and deadly martial arts in the world--Ninjutsu. From the electric streets of Tokyo to the misty mountains of North Japan--our hosts will wield the swords, throwing stars, and violent takedowns of the Ninja. They'll explore the secret passages of a 300-year-old Ninjutsu barracks, and hone the secret fighting tactics of Japan's immortal shadow warriors. And it's all in preparation for one ultimate challenge: a back-to-back showdown with two Ninjutsu masters.