The discovery of a body in a remote lake leads Mathias and the team to investigate the complicated private life of missing schoolteacher Greta Pritchard. Her father Gwilym has secrets to hide. But, what about the other men in Greta's life? This is a world rife with secrets. Will Mathias and the team unravel them in time to save the missing Greta?
HINTERLAND is noir crime drama set in the scenic, centuries-old town of Aberystwyth, Wales. The area is a natural crucible of colliding worlds a place where history, myth and tradition come face-to-face with modern life but its panoramic vistas and quaint facade hide a multitude of sins. Into this realm steps the enigmatic DCI Tom Mathias (Richard Harrington - Poldark), a brilliant but troubled man on the run from his past. Together with his equally intelligent and complex partner DI Mared Rhys (Mali Harries - Foyle's War), Mathias tackles mystifying murder cases that take viewers from the windswept sand dunes of the Welsh coastline to the badlands and beyond.