Hawaii Five-0 - Season 5 Episode 6 Ho'omā'ike (Unmasked)
Overview: It's Halloween and Five-0 must track down a serial killer who is copying murders depicted in a cult slasher film. Meanwhile, McGarrett must help Jerry after he is kidnapped by the counterfeiters he has been tracking.
Comment
While the intro theme is a little cheesy (would've been awesome if it was played by electric guitar) the reboot show is really bad ass and totally awesome. Hawaii Five-0 is one of the best buddy cop show, and set in Hawaii. Filled with action, humor and a beautiful scenery.