The year is now 40,000 BC. the entire planet seems to be observing the laws of natural selection. Well.. Almost. A small valley is still resisting Evolution. Alone against all, The Darwinners, a cutting-edge family, try to propel their contemporanies into modernity... Blog, a hunting instructor, and Spam, a prehistory teacher, try to deal with thier two teenagers : Url, their son, claims to be an anti-darwinism activist, while Web, their daughter, could kill for leopard leggings as the fashion victim of the family!