As Iarla fights for his life and Conall takes matters into his own hands. A final confrontation with Joe Lipsett forces long-buried truths into the open, bringing answers to the questions that have haunted Conall. 

Conall, Aoife and Barry launch a covert sting operation as they close in on Joe Lipsett. But while they race to secure the evidence they need, Iarla struggles under the weight of his guilt, pushing him towards a desperate breaking point.

Conall uncovers a crucial link that brings the investigation to the influential Lipsett family. As suspicion closes in on these pillars of the community, Barry discovers shocking evidence about Conall's role in Art Ó Súilleabháin's disappearance.

The identity of the human remains sends shockwaves through Carraignanaul. As Conall and Aoife investigate a murder, suspicion falls on Iarla Gillespie. With the pressure mounting and fearing for his life, Iarla sees only one way out.

Conall fears the worst when human remains are discovered in Carraig na nGall. Met with suspicion from neighbours who believe he helped his missing father disappear, he finds himself at the centre of growing speculation. Barry and Ciara-Kate investigate Art Ó Súilleabháin's mysterious disappearance.

When a prison break shatters the fresh start he's built far from home, trainee detective Conall Ó Súilleabháin is forced to return to Carraig na nGall, and to the secrets he thought he'd left behind for good. Journalists Ciara-Kate and Barry dig into the mystery of Art Ó Súilleabháin's disappearance.