This action-drama follows Finbar Murphy, an ex-assassin who has turned his back on his violent life. As he settles into a quieter life in an Irish coastal town, along comes Doireann, a fugitive running from authorities. Doireann's group blows into town, wreaking some havoc on the idyllic life of the townsfolk. Finbar must then decide if he is to reactivate the defenses he already left behind to preserve the town's peace.