Richard Coles and Asmah Mir with The Apprentice's Nick Hewer, Mars pioneer Hannah Earnshaw, motorcyclist Lois Pryce, Joe and Richard Stilgoe, Nancy Dell'Olio's Inheritance Tracks. Show more
Seven celebrities of differing faiths and beliefs set out in search of St Columba, an Irish monk born 1,500 years ago who helped spread Christianity from Ireland to Scotland. Show more
With the end of their pilgrimage looming, the celebrities get a taste of monastic life in a medieval abbey, but will it help them discover more about the pathway to faith? Show more
Life on the pilgrimage gets tough as the celebrities are challenged both physically and spiritually, struggling with lack of sleep and difficult questions about faith. Show more
