John Craven is in Northumberland on the trail of one of Britain's most enigmatic sea creatures; the white beaked dolphin. He joins wildlife cameraman Ben Burville as he attempts to get close enough to film them and then hooks up with the scientists looking to learn more about these little known animals. John also visits the site of a stunning Bronze Age burial mound where bones and artefacts are dropping out of the cliffs, and he meets a man with an unusual collection that can be seem from space. Tom Heap investigates the spread of GM technology from plants to animals and the recent good weather has been a blessing to Adam Henson whose fields have suddenly burst into life.