Summary Coast ventures to the furthest flung reaches of the British Isles to discover the most extreme locations, lifestyles and challenges of 'Life Beyond The Edge'. Nick Crane explores the exotic Isles of Scilly - 28 miles beyond Land's End, these are England's final full stop. To discover what life is like on this extreme edge, Nick visits the last house on the very tip of the most westerly inhabited isle. On precipitous slopes, beyond the edge of Devon, Coast newcomer and social historian Ruth Goodman follows in the footsteps of the remarkable Branscombe cliff farmers, who for generations followed a hardy way of life that's now gone with the sea breeze. Mark Horton explores the cutting edge of Victorian information technology in a celebration of one of Britain's most audacious engineering achievements. The titanic struggle to create the transatlantic telegraph service between Britain and America would eventually herald the birth of global communications, the transatlantic cable. Mark and the team rebuild the ingenious invention which, in 1865, finally made the transatlantic cable a glorious reality after ten years of tragic failure. And, on the dramatic rocky edge of St David's Head in South Wales, Hermione Cockburn explores the very limits of life on the planet to reveal the astonishing fossil of a large sea creature - one which lived 300 million years before the dinosaurs.

• Documentary