Orphaned in a tenement fire, three Irish immigrant children, hoping to be adopted, are sent to Missouri aboard an orphan train. Despite eight-year-old Maelle's desperate attempts to keep her siblings together, each child is taken by a different family. Maelle vows that she will never stop searching for her siblings and that they will be together one day. Sixteen years later, Maelle is still searching. So are her brother and sister. United by blood, divided by time, will they ever be reunited?