A recently widowed senior, Ed Marino (Robert De Niro) is convinced by his daughter Sally Marino-Decker (Uma Thurman), to move in with her family after an accidental shoplifting incident at a supermarket. Ed reluctantly moves in with his daughter, who gives him her her son Peter's (Oakes Fegley) bedroom. Peter is not happy about giving up his room to his grandfather and the two wage a war of against each other.