10,000 years ago our ancestors took the big step from hunter-gatherer to farmer . Over time, seeds and plants were improved. But the genetic diversity of these crops is disappearing rapidly due to the recent, uniform mass production in agriculture. And one day, we will have to face the consequences. Pioneer Cay Fowler kicks off a hallucinatory project: high in the north, deep underground, he builds a repository for seeds in order to prevent the destruction of species.