In the wake of the EU referendum, the United Kingdom's border with Ireland has gained greater significance: it is set to become the frontier with the European Union. Over the past year, Garrett Carr has travelled this border, on foot and by canoe, to uncover a landscape with a troubled past and an uncertain future. Across this thinly populated line, travelling down hidden pathways and among ancient monuments, Carr encounters a variety of characters who live on the frontier. He reveals the turbulent history of this landscape and changes the way we look at nationhood, land and power.