Young Irish immigrant Eilis Lacey (Saoirse Ronan) navigates her way through 1950s Brooklyn. Lured by the promise of the USA, Eilis departs Ireland and the comfort of her mother’s (Fiona Glascott) home for the shores of New York City. The initial shackles of homesickness quickly diminish as a fresh romance sweeps Eilis into the intoxicating charm of love. But soon, her new vivacity is disrupted by her past, and Eilis must choose between two countries and the lives that exist within.