"The Game Plan" tells the story of rugged superstar quarterback Joe Kingman (Dwayne "The Rock" Johnson), whose Boston-based team is chasing a championship. A 'serial bachelor', Kingman is living the ultimate fantasy: he's rich, famous and the life of the party. But this dream is suddenly sacked for a loss when he discovers the 7-year-old daughter (newcomer Madison Pettis) he never knew he had - the product of a last fling before parting years ago with his young wife.