The landmark documentary will show minute by minute what happened to the dinosaurs when the asteroid hit Earth and led to their demise. 

There is plenty of evidence relating to when the asteroid hit the Earth at the end of Late Cretaceous period 66 million years ago, but there is no direct evidence that confirms how it killed the dinosaurs.

A new dig site of a prehistoric graveyard known as Tanis, hidden in the low hills of North Dakota, has fossilised creatures dating back to the end of the Late Cretaceous buried under a layer of rock.

The fossils are so detailed they could provide a clear picture of what really happened to the dinosaurs.

Over three years, a BBC Studios Science Unit film crew recorded palaeontologist Robert DePalma, as he explored the site and searched for evidence linking the site to the actual day the asteroid hit.

Cutting-edge visualisation and scanning techniques, plus VFX production techniques, will immerse viewers in a blow-by-blow of the devastation that occurred.  

David Attenborough commented: “Dinosaurs were among nature's most extraordinary creatures, dominating the planet for over 150 million years before they became extinct.

“Tanis could be a place where the remains can give us an unprecedented window into the lives of the very last dinosaurs, and a minute-by-minute picture of what happened when the asteroid hit.”