Browse - Most popular shows on S4C

The lead character, DCI Tom Mathias (Richard Harrington), is a brilliant but troubled man on the run from his past. Having abandoned his life in London, he finds himself holed up in a caravan overlooking the sea on the outskirts of town - a place filled with secrets as dark and destructive as his own. Together with hometown girl DI Mared Rhys (Mali Harries), he forms an engaging partnership in a thrilling new drama with pace, poetry and scale.

Faith and her family have a happy and contented life, but one day changes it all They live in an unassuming and quiet little town in Carmarthenshire. But it's not long before the characters realise the beautiful area, once a peaceful haven, is actually a melting pot of dark secrets. Faith, a small-town Welsh lawyer, is forced to cut short her extended maternity leave when her husband and business partner, Evan, disappears suddenly one Wednesday morning. As the truth of his actions surface, Faith's life is transformed as she fights to protect her family and her sanity. As she battles to discover the truth behind his disappearance, a host of secrets come to light and she begins to question whether she really knows her husband at all. One Wednesday morning....everything changes

The series tells the story of detective DI Cadi John who returns to north Wales to care for her ailing father. However, when the body of a young woman is found in a local river, Cadi's world - and the world around her - is changed forever.

The shocking murder of a nurse opens old wounds in a small-town community, throwing a historic conviction into doubt, raising the horrifying prospect of a copycat killer and reuniting two former lovers tasked with finding the killer.With twists and turns leading to a heart-stopping finale, Cleddau is a forensic examination of a town, a killer and a relationship, past and present.

It tells the story of journalist Cat Donato who is determined to uncover the truth behind who killed her former friend Ela Roberts when they were teenagers. Meanwhile Ela's mother Sharon is also still searching for answers about what happened that day.

A thrilling story about blood, love and human relationships set in the steel town of Port Talbot. Loner Sam (Jacob Ifan, Cuffs) has his life transformed when he comes into possession of a gun and starts to break the law. His ambitious policewoman sister Gina (Catrin Stewart, Doctor Who, Stella) is paid to uphold it and makes it her mission to find the owner of the weapon. The family saga plays out against an inquiry into the shooting of a local businessman that raises questions for Sam. This series is firmly rooted in its location in Port Talbot and the Afan Valley, and Bang breaks new ground for S4C where the purposeful use of English dialogue is used to reflect aspects of this community.

Laced with humour and a touch of the absurd Pren ar y Bryn/Tree on a Hill is a story with Margaret and Clive Lewis at its heart. These unlikely heroes' quiet lives are changed in an instant when they find themselves on the wrong side of the law. Set in a bypassed town at the edge of a valley, this is a story about crumbling values, resilience and transgression being the key to liberation.

The series begins with the body of Jan Richards in her home on a well-off suburban housing estate. We're immediately thrown back 35 days, to the day Jan moves to the estate. From that day until her death, 35 days later, we'll unlock her past and find out why she was on the Crud yr Awel estate.

Successful career woman Ellie Bateman, seemingly has the perfect life - a loving husband, a beautiful daughter, and a close knit group of friends who mean the world to her. When an unforeseeable tragedy shatters their lives to pieces, Ellie knows that the only way she'll survive is to run. Will she ever find her way back - or will she choose to lose herself in a perfect storm beyond her control.

It follows the lives of staff in an overstretched mental health crisis unit in the South Wales Valleys. The series brings the mental health of those working in the sector into focus.

Exciting new drama set in a prison.

Based on Iwan 'Iwcs' Roberts' first novel, we follow the troubled story of the main character, Carbo, and accompany him on an exciting and entertaining journey as he is drawn into a world of wrongdoing, lies, secrets and heartbreak.

A Welsh mystery drama where two whodunnit stories unfold over a screen time of 35 hours.

Daily soap featuring residents of Cwmderi.

Popular drama series focusing on the lives of young people in North Wales.

Baz dreams of nothing more than finding a best friend. Her wish comes true when Molly and Dylan, two roaming Welsh Mountain ponies, show up at her farm with Shetland pony Scruffy. Their playful frolics change her life forever.