Old school grandfather Artie (Billy Crystal), who is accustomed to calling the shots, meets his match when he and his eager-to-please wife Diane (Bette Midler) agree to babysit their three grandkids when their type-A helicopter parents (Marisa Tomei, Tom Everett Scott) go away for work. But when 21st century problems collide with Artie and Diane's old-school methods of tough rules, lots of love and old-fashioned games, it's learning to bend--and not holding your ground--that binds a family together.