Jay adores his small daughter, Bonnie, and nothing matters more to him than being a good father. But Bonnie's traumatic birth puts an unbearable strain on his marriage with Shauna, and the couple eventually separate. Struggling to cope with the separation from three-year-old Bonnie, Jay thinks constantly of his own mother, whom he hasn't seen since he fled Ireland a decade before.
Dublin, 1984: Jim Finnegan is thirteen years old, the youngest in a family of five sisters. After a drunken yet delicate rendition of 'The Fields of Athenry' at a party, Jim captures both the attention of the beautiful Saidhbh Donohue and the unwanted desires of the devious Father O'Culigeen.