In 11th-century Persia, a Shia Ismaili sect built a reputation so fearsome that their name became a word for political murder. This film traces the Order of the Assassins from their mountain stronghold at Alamut under the leadership of Hassan-i Sabbah, through the training and indoctrination that turned followers into operatives willing to die completing a killing. Rather than open battle, the Assassins relied on infiltration, disguise, and the stiletto, striking Sunni viziers, generals, and rulers in public settings to maximize the psychological effect on their enemies. Historians walk through the sect's targets and methods, the political logic behind picking assassination over armies, and how the fortress network sustained a small, hidden order against much larger powers. The film also covers the group's eventual destruction under the Mongol advance and how the word 'assassin' entered European languages carrying the legend attached to it. It is a straightforward historical account of how fear itself became a weapon.