NEW: DARK LAND Series 2 Lands on iplayer

Our returning Series Dark Land: Hunting The Killers is back with six shocking new cases for our team re-investigate. Former Welsh police officers Jackie Roberts and Paul Bethell join forces with an elite team of criminologists and forensic psychologists to re-examine old clues – and uncover new ones – as they attempt to put to rest the unsolved mysteries that darken Wales’ rolling hills.