Archaeologists hunt for Queen Cleopatra's lost tomb; underwater archaeologists explore sunken ruins; a team takes mummies to the hospital to scan for hidden treasure; an archaeologist discovers a secret tunnel network at a forgotten temple.
When Rome is sacked by barbarians, Europe enters a Dark Age. But from the fringes of the old empire, two new forces remake the world. The Arabs, funded by a gold rush, unite under the banner of Islam. The Vikings rejuvenate the cities of Europe, travel to America and become Christian knights. The stage is set for a clash of civilisations - the Crusades.