An estranged family discovers that to understand the past, they first have to face it. For an old man on Christmas, the reward is being called Grandpa for the first time ever. 80 year old Bert O'Riley (Ernest Borgnine) is a former movie tough guy. With a scrapbook full of memories, life has been good to him. But he never expected any more surprises. Then he receives word that Marie, the daughter he hasn't seen in decades, is in the hospital following an accident. What's more, Becca, the granddaughter he's never met, is moving in with him!