When a young Israeli woman suddenly goes missing, her boyfriend, an American nuclear engineer, suspects her disappearance is connected to her tantalizing theory about the haunting fortress of Masada. He decides to travel to Herod's 2000 year old mountain fortress to see if her theory was right. There, he makes a discovery so astonishing that forces from the dark side of Israeli intelligence begin to converge on him to deflect his pursuit of the truth by any means necessary. With the aid of a beautiful Israeli archaeologist, he struggles to bring to light the treasures he believes are concealed in the mountain, unaware that there is a dangerous contemporary secret at stake.