Neil Morrissey and Martin Clunes celebrate 40 years of friendship on a bespoke road trip through southern France. In the first episode, the boys reunite at Neil's French home, before heading to one of France's deepest wine cellars along the Dordogne River and on to the vineyards of Bordeaux, ending their day atop Europe's largest sand dune. 

On the final leg of their journey, Neil and Martin ride the famous white horses of the Carmague across sweeping salt flats, try their hand at painting like Van Gogh in the pretty town of Arles, before heading back to Neil's farmhouse for a raucous homecoming party.