The cameras follow dive support vessel, the Bibby Sapphire, out to the North Sea. And take a close look at the hazardous job divers face when they step out of their diving bell and on to the seabed. Harbour boatman Billy Duguid has spent his life working on - and around - boats. And he loses patience when the younger generation of boatmen don't seem quite as committed. Val Morrison the barmaid from the Crown and Anchor tries to persuade canny North East folk to part with their money at a car boot sale. And new recruit Gary Morris faces a daunting challenge as the boatmen head out into the bay to bring in an unmanned barge.