Three misfit priests and their housekeeper live on Craggy Island, not the peaceful and quiet part of Ireland that it seems to be.

Set in Kerry, Ireland, the series is about a candidate for political office who forms an alliance with an unlikely partner when his campaign is not going according to plan.

Peter, a young aircraft engineer is deceived by his manager Jason into substituting faulty aircraft parts. When a part explodes killing a passenger, Air accident investigation find Peter responsible. Jason is found murdered.

A gangster named Perrier looks to exact his revenge on a trio of fugitives responsible for the accidental death of one of his cronies.