In the end, Sumer was invaded by the Elamites who came from modern-day Iran. Narrator: Hello, future people of the UK. Would you like to visit me at the dawn of civilisation in ancient Sumer?

Narrator: Hello, future people of the UK. Would you like to visit me at the dawn of civilisation in ancient Sumer? Well, to do that, you’ve got to travel back in time. Back before the Vikings ...

Carson theorizes that an alien race of giant humanoids, which he refers to as the Annunaki, landed in ancient Sumer before recorded history, intending to mine gold for an unspecified reason.