Peter Stanford makes a modern-day pilgrimage around some of the most ancient religious sites in Britain, to take the spiritual temperature of an age often described as secular and sceptical. Do the present-day pilgrims he meets en route go simply in search of history, or does their journey have another significance rooted in the unholy times in which we live now? Are their numbers growing as more conventional church-going declines? The Extra Mile is the evocative, sometimes humorous, sometimes challenging story of one individual's pilgrimage in search of faith in Britain today. As he walks between Neolithic stones, ruined abbeys and miracle wells, Stanford explores the link between past and present belief and reflects on the spiritual state we are in.