A large settlement dating back to the first century BC has been found in the Russian republic of North Ossetia. But since the archaeological site is in a valley next to a hydroplant under construction, there's a race to unlock its secrets, before it's flooded.

Most of the 60 people working at the site in the Zaramag Valley are amateurs with professionals guiding them.

Every day they antique jewellery, tools, weapons and crockery that once belonged to the ancient tribe of Alans, the ancestors of modern Ossetians.