Once Upon a Time in Space will tell the human story of space exploration using unique, unexpected archive, present-day footage and first-hand testimony from around the world.

On the 14 December 1972, Eugene Cernan became the eleventh person to walk on the Moon. Leaving the lunar surface, he proclaimed, ‘We shall return'. These remain the last words to have been spoken on the Moon. In the decades since, the moon has become alien once again to direct human contact. However, that's all about to change.

Humans are once again looking up and heading out, back into space… and we're taking our power struggles with us. China, Russia, America, India, Saudi Arabia and Japan are all investing heavily in lunar exploration, jostling for power and influence amongst the stars. A new Space Race has begun.

The series will connect the past with the present and examine what the consequences are for the future of humankind as we once again head into space. It will hear compelling new testimony from pioneering astronauts, visionary scientists, remarkable engineers, daring space tourists, maverick billionaires, romantic dreamers and astro-theorists spellbound by the wonder of possibility.