Today, nationalism, climate change, globalisation, technology and mass migration are all colliding with ever-hardening borders. Something has to give. Combining history, travel and reportage, The Edge of the Plain, takes us through the history of borders – from the first ever marker which denoted the edge of one land and the beginning of the next, to the walls going up around the world today. It is a story told in four parts: Making, Moving, Crossing and Breaking. Each part explores a different aspect of the lifecycle and experience of borders all around the world and throughout history – how they are created, how they can change and evolve, how they are crossed or breached, and, finally, how they are overcome or broken.