Mark Perez has been hired to write “The Hardy Men” for Fox 2000. The studio hopes to get a franchise out of the property.A tongue-in-cheek adaptation of the classic “Hardy Boys” mystery series, “Hardy Men” is the story of the boys after they grow up. Although they haven’t spoken since they ended their high-profile detective partnership 15 years earlier, they reluctantly reteam when their father is kidnapped. Fox 2000 exec veep Carla Hacken and prexy Elizabeth Gabler shepherd the project, which will be produced by Ben Stiller and Stuart Cornfeld’s Red Hour Films, Robert Kosberg and Nelvana, which controlled the original “Hardy Boys” rights. Perez, who wrote “The Country Bears” for Disney, is repped by CAA and manager Brian Lutz.