66 million years ago, a meteorite caused the extinction of more than 75% of all species, including the dinosaurs. This cataclysm changed the course of life on Earth forever. How did life rebuild itself after this mass extinction?

An extraordinary discovery in Colorado has unveiled thousands of fossils of plants and animals, that allow to tell the story of the rebirth of life after the chaos for the million year that followed the asteroid hit. For the first time, scientists are able to shed light on the origin of our modern species, mammals, turtles, crocodiles, fish and birds who survived the extinction.  This film tells their story.