Cattle - with horns - are the focus of this documentary series by the French filmmakers, who decided to bring us closer to the most famous horned domesticated creatures on the planet. Their ancestors lived on Earth 18 million years ago. It was a small, forest-dwelling mammal - and in the course of evolution, this little antelope became the direct ancestor of the now-extinct turo. The human hunter who pursued these ungulates became the herder - and eventually evolved the ox, zebu, buffalo or whatever... Follow in the footsteps of the horned ungulates without which man could not exist today.