Comedian Dara Ó Briain explores the ways in which the moon shapes just about everything around us. He looks at the relationship between the moon and time, visiting an archeological site in Ireland which may have been a giant lunar calendar. He also investigates the full moon’s effect on human behavior (and cow fertility), and why there's a space race to get back to the surface of our satellite.

The moon has always been a mystery to humans on the Earth’s surface, as they stare into space. But could science soon reveal all of her secrets? Dara Ó Briain investigates lunar science, telling the story of how the first photograph of the far side of the moon left scientists baffled. He tries a VR headset to take his very own giant leap on the 'moon's' surface and ponders the future of the moon.