Hidden - Season 3

After learning about reports of animal abuse at the Williamses' farm, Cadi and Owen head there to question Ifan's mother, Mair. From a former farmhand named Dafydd, the detectives learn more about what kind of man Ifan was. Sin stews over his financial debt, and Father McEwan pays a visit to Glyn. Cadi finally tells Rachel about her job interview in Liverpool, prompting an argument.

After arresting Polish migrant worker Piotr Korecki, Cadi and Owen interrogate him about the CCTV footage showing his altercation with Ifan. The following morning, Sin's ex-girlfriend Hannah visits him and frets over the state of the brothers and their home. Cadi and her sisters gather to say goodbye to their family home on the island, and later, Rachel devastates Cadi by breaking up with her.

Cadi tries to move forward by focusing on the one thing she knows she's good at: work. The detectives go back to Ifan's farm, while an increasingly agitated Sin is fired from his job at the building site. Returning home, he takes out his anger and frustration on his brother. Father McEwan's silence about past crimes comes back to haunt him.

When Father McEwan's body is discovered, Rachel, in her capacity as pathologist, tells Cadi she thinks the murders are linked-but she doesn't want to engage with Cadi beyond the professional. The detectives question Dafydd, who reveals his suspicions about Ifan's long-ago involvement in the arson attack that killed Branwen Thomas. Cadi sends a team to the Thomas house, but the brothers have fled.