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.