How many apples are there in a can of cider? How does a humble vegetable become trademarked? And is the white stuff on salami something we should be talking about?

Jimmy Doherty and Briony May Williams embark on an epic journey through the Nordic region. Starting in the Viking fjords of west Norway, they take to the seas to uncover how cod farming could be the future for meeting UK appetites. Travelling east, through the ancient landscape of Sweden, paying a special visit to a certain furniture store and learning just what makes a meatball so Swedish. They finish their journey in Finland, apparently home to the happiest people in the world, finding out what just food is putting a smile on their faces.