Ari Ben Chaim confronts the Mahdi Brotherhood who believe he is the Mahdi, the Muslim messiah. They direct him to bow up the Golan, triggering a volcanic meltdown that will dry up the Sea of Galilee. Lily, his wife, must prevent an even greater catastrophe in Jerusalem. From the tropical shores of the Galilee, to the arid peaks of Mt. Sinai, and back to Jerusalem, they make an astounding discovery and come to terms with their future.