1x3 - Hidden

The police investigation enters a new phase when DI Cadi John and DS Owen Vaughan are called to the scene of a potential kidnapping in the middle of the night, and their concerns that a serial kidnapper is on the loose are confirmed, but a shocked Lowri Driscoll isn't able to offer any information about the identity of her attacker. Lowri's boyfriend is questioned by Cadi and Owen, but they have no evidence to link him to the attack. They track down the vehicle involved, but find it is listed as belonging to a "William Parry", who died some years previously. Dylan Harris has an explosive outburst at Carn Ddu quarry after he is sacked, which leaves his boss Delyth Hughes worried about his mental health. And two worlds collide when Cadi's sister Elin treats Dylan's wound in the hospital. Student Megan has a breakdown after losing her coursework. Fleeing from university, she tries to take her own life and inadvertently falls into the hands of Dylan, who is actively searching for another victim.