Hidden 2018n

DI Cadi John and DS Owen Vaughan investigate when the body of a woman missing since 2011 is discovered in a river in the Snowdonia National Park.

Stars: Sian Reese-Williams, Rhodri Meilir, Gwyneth Keyworth
Director(s): Gareth Bryn
Writer(s): Mark Andrew, Caryl Lewis

Cadi and Owen investigate a possible link to another girl who disappeared. Megan hides her difficulties from friends and family. Dylan takes an interest in Lowri.

Stars: Sian Reese-Williams, Rhodri Meilir, Gwyneth Keyworth
Director(s): Gareth Bryn
Writer(s): James Rourke, Caryl Lewis, Mark Andrew

Marc is questioned by the police. Cadi avoids talking to her father or sisters about his condition. Megan tries to take catch up with her schoolwork but Ffion notices something's wrong. Sara visits Lea, Mali's sister.

Stars: Sian Reese-Williams, Rhodri Meilir, Gwyneth Keyworth
Director(s): Eric Styles
Writer(s): Mark Andrew, James Rourke

Dylan and Iona clash regarding Megan. Mari and Ryan continue the questioning procedure, but Mari deviates from protocol.

Stars: Rhodri Meilir, Gillian Elisa, Gwyneth Keyworth
Director(s): Gareth Bryn
Writer(s): Mark Andrew, Jeff Murphy

Cadi and Owen discover a possible connection to an old case, which Cadi's father investigated. Lowri tries to return to her normal routine.

Stars: Sian Reese-Williams, Rhodri Meilir, Owen Arwyn
Director(s): Eric Styles
Writer(s): Mark Andrew, James Rourke

Cadi questions Endaf in prison about the murder he was convicted for. Owen reviews the older case files and receives a new missing persons report. Iona visits Megan.

Stars: Sian Reese-Williams, Mark Lewis Jones, Rhodri Meilir
Director(s): Chris Forster
Writer(s): Mark Andrew, Caryl Lewis

Cadi and Owen search for new evidence in Endaf's case, which was originally headed by Cadi's father Huw. Dylan works with Matthew at his yard. Megan tries connecting with Nia.

Stars: Sian Reese-Williams, Rhodri Meilir, Gwyneth Keyworth
Director(s): Gareth Bryn
Writer(s): Mark Andrew, Jeff Murphy

With Dylan on the run, the investigating team attempt to put together an exact timeline of his actions and find further evidence.

Stars: Sian Reese-Williams, Rhodri Meilir, Gwyneth Keyworth
Director(s): Gareth Bryn
Writer(s): Mark Andrew, Caryl Lewis