Across the world, cutting-edge scientists are racing to change the course of nature by resurrecting dead and extinct animals. Ground-breaking new technologies such as cloning, rewilding, gene-editing & assisted reproductive techniques are all being employed to save species from extinction and resurrect lost worlds.

But should we really be ‘playing God’? And what are the consequences of resurrecting the dead?

This groundbreaking series takes us to the global frontiers of cloning and de-exctinction science. With exclusive access, we meet the controversial American team aiming to resurrect the woolly mammoth, and the Siberian team trying to rewild the nature reserve that could eventually serve as its home. We go inside the hi-tech dog cloning labs in China who are helping to resurrect people's dead pets. We uncover the world's first camel-cloning programme in Dubai as they attempt to create a 'Super Camel' for their iconic race tracks. We join the German-funded 'Biorescue' team who are racing against time to save the northern white rhino in Kenya. And we uncover the cloning techniques being used to safeguard the world’s last wild horses in San Diego.

With an international cast of extraordinary characters, this series reveals the complex interplay between genetics and human ethics in the search of a new kind of conservation, and explores the delicate balance between playing nature's architect and nature's guardian.