9 Moments From "Ho'omā'ike" - Hawaii Five-0 S5 E6

It's Halloween and Five-0 must track down a serial killer who is copying murders depicted in a cult slasher film.

"Ho'omā'ike" - Hawaii Five-0 S5 E6

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, on HAWAII FIVE-0, Friday, Oct. 31 (9:00-10:00, ET/PT), on the CBS Television Network. 2014 CBS Broadcasting, Inc. All Rights Reserved

"Ho'omā'ike" - Hawaii Five-0 S5 E6

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, on HAWAII FIVE-0, Friday, Oct. 31 (9:00-10:00, ET/PT), on the CBS Television Network. Photo 2014 CBS Broadcasting, Inc. All Rights Reserved

"Ho'omā'ike" - Hawaii Five-0 S5 E6

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, on HAWAII FIVE-0, Friday, Oct. 31 (9:00-10:00, ET/PT), on the CBS Television Network. Pictured(L-R) Masi Oka as Dr. Max Bergman, Chi McBride as Lou Grover and Grace Park as Kono Kalakaua Photo 2014 CBS Broadcasting, Inc. All Rights Reserved

"Ho'omā'ike" - Hawaii Five-0 S5 E6

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, on HAWAII FIVE-0, Friday, Oct. 31 (9:00-10:00, ET/PT), on the CBS Television Network. Pictured(L-R) Masi Oka as Dr. Max Bergman, Chi McBride as Lou Grover and Grace Park as Kono Kalakaua Photo 2014 CBS Broadcasting, Inc. All Rights Reserved

"Ho'omā'ike" - Hawaii Five-0 S5 E6

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, on HAWAII FIVE-0, Friday, Oct. 31 (9:00-10:00, ET/PT), on the CBS Television Network. Pictured (L-R) Daniel Dae Kim as Chin Ho Kelly and Masi Oka as Dr. Max Bergman Photo 2014 CBS Broadcasting, Inc. All Rights Reserved

"Ho'omā'ike" - Hawaii Five-0 S5 E6

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, on HAWAII FIVE-0, Friday, Oct. 31 (9:00-10:00, ET/PT), on the CBS Television Network. Pictured (L-R) Taylor Wily Kamekona and Daniel Dae Kim as Chin Ho Kelly Photo 2014 CBS Broadcasting, Inc. All Rights Reserved

"Ho'omā'ike" - Hawaii Five-0 S5 E6

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, on HAWAII FIVE-0, Friday, Oct. 31 (9:00-10:00, ET/PT), on the CBS Television Network. Pictured (L-R) Alex O'Loughlin as Steve McGarrett and Scott Caan as Danny "Danno" Williams Photo 2014 CBS Broadcasting, Inc. All Rights Reserved

"Ho'omā'ike" - Hawaii Five-0 S5 E6

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, on HAWAII FIVE-0, Friday, Oct. 31 (9:00-10:00, ET/PT), on the CBS Television Network. Pictured (L-R) Scott Caan as Danny "Danno" Williams and Alex O'Loughlin as Steve McGarrett Photo 2014 CBS Broadcasting, Inc. All Rights Reserved

"Ho'omā'ike" - Hawaii Five-0 S5 E6

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, on HAWAII FIVE-0, Friday, Oct. 31 (9:00-10:00, ET/PT), on the CBS Television Network. Pictured Alex O'Loughlin as Steve McGarrett and Mirrah Foulkes as Ellie Clayton Photo 2014 CBS Broadcasting, Inc. All Rights Reserved