David Attenborough embarks on an extraordinary journey to unravel one of nature’s most gripping stories – the evolution of flying animals. He begins by exploring the unexpectedly advanced world of the very first flyers – the insects. Stunning new images give us fresh insights into an astonishing story – from the first dragonfly-like creatures that emerged from the water to fly on four wings, to the beetles that built hard wing-cases to colonise the land, and butterflies capable of migrating halfway round the globe. He concludes by investigating the remarkable skills of jet fighter of the insect world – the humble but surprisingly acrobatic fly.

David Attenborough concludes his epic history of the evolution of flight with an exploration of the highly advanced fliers that dominate our skies today – the extraordinarily diverse skills of the birds, and the sonar-guided precision of the bats. He encounters some of our planet’s most remarkable fliers – from peregrine falcons dive-bombing starlings over Rome, to hummingbirds hovering in the cloud forests of Ecuador. In a spectacular finale, he visits Gomantong cave in Borneo to witness the mass exodus of a million bats.