Broadcaster David Dimbleby sails his yacht Rocket around the British coastline, exploring different aspects of the nation's maritime history, art and architecture along the way. He begins by sailing the south-west coast of Devon and Cornwall, where he tells the story of Sir Francis Drake and an array of adventurers, explorers, pirates and smugglers. He also welcomes record-breaking solo yachtswoman Ellen MacArthur on board and learns about one of the oldest maritime art forms of all - the tattoo. But will he agree to have one himself?