The critically acclaimed drama returns for six more riveting episodes. In this season, DC Kate Fleming and DS Steve Arnott of AC-12 investigate the conduct of Sergeant Danny Waldron of the Armed Response Unit.

For centuries vampires have co-existed in harmony with humans until now ... Amidst the growing threat of viral epidemic and the possibility of worldwide environmental catastrophe, humanity has an unprecedented ability to destroy itself. In order to prevent further contamination or loss of their food supply, the vampires have organized and are pouring funds into all manner of human scientific research. Though they profess to be a persecuted and misunderstood...

As happy as a turkey on Boxing Day -- When a child is born -- Changing times -- Stardust in your eyes -- Fortune in Men's eyes -- I know when I'm not wanted -- Personal call -- Lost sheep -- Waiting game -- Pack up your troubles -- Reckoning -- Amongst friends.

Detective Chief Inspector Tony Gates is an exemplary cop. He's got the best crime stats on the force and a loyal team working under him. But the head of the police anticorruption unit, Superintendent Ted Hastings, has his doubts about Gates. Is he really that good? And more importantly, is he really that clean? Hastings decides to find out and all on a new arrival to his department, Detective Sergeant Steven Arnott to help him do it. As the net tightens...

Life is a challenge for any priest in a small mountain town, and Father Aiden O'Connell finds himself not only dealing with a new romance for Niamh and Orla and a new garda for Bally K, but some troubles of his own as well.