The Blackwater Whiskey Festival has arrived. Fia takes the law into her own hands in order to get to the truth.

With the murder victim's daughter missing, Fia is in a race against time.

With Bill McGuire now firmly in her sights, Fia is struggling to find the evidence she needs to bring the case to a close.

With the case confirmed as a murder, Fia suspects her new partner is involved in Roisin Hurley's death, and after a confession from Cian, she cautiously accepts his help.

The past and present begin to merge for DI Fia Lucey.

When her career is threatened due to a series of undue force allegations, DI Fia Lucey is sent back to her hometown of Blackwater to investigate a missing person case.