When rebels in the Sinai desert hijack her archaeologist mother's dig, surly teenager Sudi Tarik takes twelve-year-old Eden Luck to safety. The rebels are in the employ of fanatical industrialist Karl Klein who is searching for a prophetic scroll, which will change the course of Eden and Sudi's young lives. Years later they are thrown together again, when Klein, convinced they are the chosen ones mentioned in the scroll and not satisfied with murdering Eden's mother, kidnaps and tortures her father, sending the pair on a hunt for the mythical "Holy Grail". They try to buy time for a rescue by following leads which take them on a treasure hunt in France, escape from a gun wielding assailant through the streets of Jerusalem finally ending their quest in an explosive cliff top encounter on the stormy cliffs of St David's in West Wales.