After a "zombie attack" at a Halloween party, Five-0 discovers a mad doctor who is conducting bizarre human experiments.


(as Jon Terlesky)


(developed by), (developed by) | 4 more credits »

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Episode cast overview, first billed only:
Marshall Demps
Henry Upton
Ryu Nabushi / Hideaki Kuroda
Dennis Chun ...
Dixie Rose ...
Lisa Mills
Dr. William Ellery


Max and Sabrina are watching an outdoor movie when a man walks in and appears to be incoherent. He then starts attacking people, a cop tries to control him but the man goes wild and the cop shoots him. Steve and Danny arrive and Max thinks the guy is a zombie. But at the morgue, Max collapses, they learn the man was drugged and the drugged turned into a gas that infected Max. They learn that the man worked at hospital and went there before he was found and took out something from the morgue. They learn he took the head off a corpse. They learn the head was that of a girl who went missing a year ago who resurfaced with no memory of what happened to her. They learn of a guy who was trying to contact her who has been laying low was also abducted two years ago. They see that someone did experiments on him and the girl. They try to find the person who did this. Catherine is still reeling from Billy's death decides to help find Adam. Written by

Plot Summary | Add Synopsis


Action | Crime | Drama


TV-14 | See all certifications »




Release Date:

1 November 2013 (USA)  »

Filming Locations:

Company Credits

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Technical Specs


Sound Mix:


Aspect Ratio:

16:9 HD
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Did You Know?


"Kupouli 'la" translates to "Broken" in English. See more »


When Steve is at the party, he asks the bodyguard if he has seen Michael Besner and shows him a picture on his phone but the phone's screen is black. See more »


Features The Rocky Horror Picture Show (1975) See more »


Hawaii 5-0 Theme
Written by Morton Stevens
Performed by Brian Tyler
See more »

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User Reviews

Danny and Steve Get Back Best To What They Are Known For!
3 November 2013 | by (Seymour Tennessee) – See all my reviews

Danny and Steve get back to doing what they are known for doing. As they are celebrating Halloween. Though Catherine now has a new purpose since Billy died in the line of duty.

In trying to help to locate Kono and bring her back to safety. While Steve and Danny got back to doing what they were doing. As Danny complains his house was being wrapped with toilet paper.

He also I think needs to let Steve pay for the gas if Steve wants to drive his Camaro. As really they are butchering Steve's character this season. Love him but really becoming more and more of a jerk.

Still love both he and Danny bickering and going on the Halloween party bus. As Danny is shocked in the end to find out who rolled his house and yard. Won't give it away who did it. But really it is pretty funny and sad at the time.

Corbin Bernsen stars as liked him since LA Law and is now on Psych!

1 of 4 people found this review helpful.  Was this review helpful to you?

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Girlfriends for the sake of girlfriends ellanegri
The actress playing Kono's friend Rosie... smeaglin-466-803288
Not again hhanse57
Max (Masi Oka) . I miss him. jk-692-236394
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Kono kills 5 people and it's nothing to her chrisminshew82
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