In the fourth, concluding episode, John travels to one of the most northerly parts of Ireland, Portrush. Battered by big swells and cold arctic winds, John goes swimming with a local swimming club, before discovering a unique taxi tradition in Belfast's Falls Road. In South Armagh, he meets farmer Jas McDonald for an idiosyncratic take on the reality of living on the North and South border.It's a rollicking and hilarious voyage that will not only follow John discovering iconic sights and quirky customs, but will also see him perform his comedy along the way, from a small and cramped gig in Belfast, through to the biggest stage in all of Ireland as he completes his journey in Dublin..