Hidden Series 1 DVD

All the episodes of the crime drama in which accomplished investigator DI Cadi John (Sian Reese-Williams) sets about solving a case involving the disappearance of a girl five years prior.
When the girl's body is found in a lake, Cadi and her partner DS Owen Vaughan (Sion Alun Davies)'s investigation entangles them in a web of cold murder and a possible wrongful conviction.
Can they find out what happened to the victim and locate the true perpetrator?