Ellie Harrison visits the Farne Islands, an offshore paradise for seabirds and seals, and one of the greatest wildlife spectacles in Britain. She gets attacked by Arctic terns, gets hands on with a puffin, and goes swimming with grey seals. Along the way she discovers how the country's coastal and marine wildlife is under threat.Bill Oddie has been watching puffins since he was a child and now has the chance to discover where they go when they leave British shores. Iolo Williams climbs up to the nest of Britain's largest bird of prey, the sea eagle, to get a close up of their huge chicks and Miranda Krestovnikoff goes in search of the charismatic bottlenose dolphin. Finally, Ellie finds out how our largest mammal, the grey seal, triumphed over pollution and persecution.