Living on the Edge

S1 E2: The team travel to the Shetland Islands to visit a remote outcrop known as the Kame of Isbister that has a series of enigmatic structures. They are the first archaeological team ever to investigate the crumbling headland, and with the fast rate of erosion possibly the last. They hope to prove the settlement was either a Monastic retreat or a leper colony. What they discover surprises everyone.