From Ancient Greece to the frozen North, leaders have wanted their troops -- men trained proficient with a devastating array of weaponry -- men that will track their leader's enemies down and kill them. All assassination teams faced one problem. No body at the world had sniper rifles. Because of this the powerful Japanese Ninjas got captured and tortured. This series attracts some of antiquity's stories to life with a mixture of reconstruction , documentary filming and expert testimony. Each episode details the intricate sophistication of the troops that performed the assassination missions and the way they functioned. It shows what they had to complete to achieve also the weapons when they completed their assignment, they must use, and elite status, the way they can dress.