Accompanying the BBC series, this is a captivating journey back in time to follow in the footsteps of the first Americans. Moving across this vast continent region by region, present-day animals are studied for insights into older, now extinct beasts. A wealth of fossil evidence on the continent's prehistoric wildlife has provided intriguing clues to the past, and with modern computer techniques it is now possible to flesh out those bones, put fur on them and bring them back to life. A series of stunning computer-generated panoramas creates a vivid picture of what this ancient landscape was like, which animals were present and how they lived and died. The final chapter, Mammoths to Manhattan, brings the story up to the present day, explaining the disappearance of the megafauna and highlighting the animal winners and losers following the arrival of humans.