Bert O'Reiley is a retired song and dance man who becomes an instant grandfather to the nine-year-old granddaughter he has never met.Bert O'Reiley is a retired song and dance man who becomes an instant grandfather to the nine-year-old granddaughter he has never met.Bert O'Reiley is a retired song and dance man who becomes an instant grandfather to the nine-year-old granddaughter he has never met.