Seven people living in the public eye say goodbye to their hectic lives, don backpacks and walking boots, and set out on the famous Camino de Santiago pilgrimage. They have 15 days to tackle this ancient 780km path across northern Spain to the Cathedral of Santiago de Compostela and the shrine of St James. But will this journey of a lifetime change the way they think about themselves and their faith, as well as exploring whether a medieval pilgrimage has any relevance in the modern day?