1960s, Ireland. In the wake of tragedy, a father makes choices for his 11 grieving sons. The older brothers will emigrate to England for work, while the younger ones will stay behind. The second eldest, Macdara, is offered a job on a Montana cattle ranch and sets off. His spirited younger brother, Rian, begs to come along, and Mac promises to bring Rian to America as soon as he’s old enough. But then one day Mac gets a call that Rian has gone missing. His disappearance will haunt Mac and his family across decades.