The Hairy Bikers take their longest trip in this baking series, from Cornwall to Scotland. Dave and Si start in the far South West cooking traditional pasties at Geevor Tin Mine in Cornwall, then head northwards to the Midlands, and then on to Huntly in Aberdeenshire, where our hungry hairy bikers sample an extraordinary range of pies - Scotch pie, macaroni pie, and mashed potato and baked bean pie.