On Christmas morning Kitty Doherty gives birth to her baby - who is immediately taken away for adoption in America. But Kitty's life is hanging by a thread, her only hope a dangerous journey through snow to Ballymara and her Irish family. Meanwhile, in Chicago, Sean and Alice try to set up a new life, far away from the families they have deserted in Liverpool.
Mitch is a 25-year-old with commitment issues. Leonard is a five-year-old kid with asthma and vision problems, who captivates everyone he meets. Pearl is Leonard's teenage mother, who's trying to hide a violent secret from her past. Life has given Pearl every reason to mistrust people, but circumstances force...