Ground Truth traces the constant remaking of Porthcurno Beach. The film relates different mappings of the beach in the form of LiDAR scanning, archival material and collage, establishing these competing cartographies as all simultaneously true. This reveals how, despite being a heavily fortified military location, the beach is remade over and over again to look natural. This echoes narratives used to present the pervasive logic of techno-capitalist commodification as the natural progression of the world, while complicating the didactic nature of Adam Curtis documentaries. The form of the film draws on research by Luciana Parisi and John May about the origins of machine vision.