Claire McCollum travels to County Mayo in Ireland to join thousands of pilgrims as they climb Ireland's holy mountain - Croagh Patrick. Sean Fletcher visits another point of major interest for pilgrims, Knock Shrine. Sally Magnusson travels to Nepal to reveal how mountaineer Doug Scott is giving something back to the people. Claire tells the story of the Celtic Christian who became a pirate queen. There is also a spectacular performance of Amazing Grace by Celtic Woman.