Freshly transferred to his hometown from Dublin, Garda Sergeant Jack Driscoll probes the carbon monoxide poisoning of a young immigrant woman. The investigation threatens to expose dirty secrets kept by a few well-respected local men—including, perhaps, his father.

After toddler Conal Burke disappears, his mother accuses her estranged husband of snatching him. Jack desperately tries to locate the boy and his father before Conal's two violent uncles get involved.

After toddler Conal Burke disappears, his mother accuses her estranged husband of snatching him. Driscoll desperately tries to locate the boy and his father before Conal’s two violent uncles get involved. Meanwhile, a tribunal investigates past police misconduct by Jack’s father.

Driscoll heroically pulls 17-year-old Daniel O’Malley out of the bay—too late to save him. The mystery surrounding the teenager’s death deepens when Driscoll learns that his old flame has been “vacationing” at a cottage overlooking the exact spot where Daniel drowned.

For Jack, the murder of a reclusive old man raises more questions than answers. Meanwhile, a visiting couple from Manchester are trying to solve their own family mystery. Jack’s hunt for a killer and Brian’s search for his family history lead them to the same place.

For Jack, the murder of a reclusive old man raises more questions than answers. Meanwhile, a visiting couple from Manchester are trying to solve their own family mystery. Jack’s hunt for a killer and Brian’s search for his family history lead them to the same place.