SAN DIEGO (AP): "Grimm" plans to turn fairytales on their heads.

After previewing the first episode of NBC's upcoming storytelling-meets-crimefighting procedural, which is loosely based on Little Red Riding Hood, the "Grimm" cast and crew promised Comic-Con attendees that other bedtime stories would be transformed into supernatural cases, including the Three Little Pigs, Cinderella and Goldilocks and the Three Bears.