Join or Sign In
Sign in to customize your TV listings
By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.
Hawaii Five-O Season 12 Episodes
Season 12 Episode Guide
19 Episodes 1979 - 1980
Episode 1
A Lion in the Streets
Thu, Oct 4, 197994 mins
The Hawaiian kumu mob attempts to take over a resort-workers union, to the fury of native Hawaiians who vengefully infiltrate and smash underground activities in lawless fashion. Meanwhile, Boston ex-cop James Carew trails a mainland gangster - who is providing aid and comfort to the kumu - to Hawaii in order to get information on the murders of his wife and child.
Episode 2
Who Says Cops Don't Cry?
Thu, Oct 11, 197950 mins
When Officer Lori Wilson's husband is murdered by robbers just as he is about to become a Five-O team member, Lori herself joins Five-O to track down -- and possibly gun down -- the crooks.
Episode 3
Though the Heavens Fall
Thu, Oct 18, 197950 mins
An exclusive sporting club uses sport-hunting techniques to perform vigilante "justice" on criminals who beat the rap on technicalities.
Episode 4
Sign of the Ram
Thu, Oct 25, 197950 mins
Steve is approached by an astrologer who tells him that a boxer who has a bout on the island will die if he goes through with the fight. But Steve is incredulous.
Episode 5
Good Help Is Hard to Find
Thu, Nov 1, 197950 mins
In his last appearance, kumu mobster Tony Alika tries to divert Five-O's attention from his smuggling efforts -- including PCP and a hired killer who murdered Kimo's wife and son -- by sending phony tips to Five-O which make them look "like Keystone Kops" (quoted in a sign at one so-called crime scene) who should be disbanded. This was the only 12th-season episode to be repeated in prime time, as the final telecast on April 26, 1980.
Episode 6
Image of Fear
Thu, Nov 8, 197960 mins
Someone apparently is trying to convince Joan Carter (and everyone she knows) that she is mentally ill and only imagining the frightening attacks on her life, but one of those people -- Five-O boss Steve McGarrett -- isn't buying it. Apparently, Joan's antagonist -- if, indeed, that's what he is -- is a mysterious, very-much still alive man known as "Kwan", who, according to Joan, she once shot to death.
Episode 7
Use a Gun, Go to Hell
Thu, Nov 29, 197950 mins
Various owners of a handgun of unusual design, which was used in a murder six months earlier and then dumped. Two punks use it in a robbery-shooting that leads to one of the thieves also being injured. When ballistics tests reveals the the same weapon was used in the still-unsolved murder of a state senator, the leader of the gang tries to sell it back to the killer. Several more people are shot as the gun makes its way through the Hawaiian underground, two of them fatally.
Episode 8
Voice of Terror
Tue, Dec 4, 197950 mins
A group fanatics who were plotting to take over a radio station so that they could broadcast their message are pulled over by a police cruiser. They shoot one of the two cops, then decide to take the cruiser and the other cop hostage, and use the police radio as a link. When McGarrett hears of this, he sends Truck and another cop to try and take them but they kill the cop he's with and keep Truck. Steve has to find another way to get to them so he hopes that their associate who was wounded when they took the cruiser and left behind might be able to help them. Steve just has to find a way to convince him to.
Episode 9
A Shallow Grave
Tue, Dec 11, 197950 mins
A college student returns to Hawaii after a 20-year absence (his parents died when he was a little boy and he was adopted), haunted by a series of disturbing flashbacks which seem to make no sense. Things start to come together when a convict gets out of prison after serving 20 years for bank robbery, and some of the student's visions seem to match the robbery scene. The student and the convict confront each other, and before long the convict is dead, his head bashed in. Did the unstable student freak out and murder the convict, did he kill the enraged convict in self-defense, or did someone else commit the murder? And what ever happened to the convict's partner, who was wounded in a shootout while fleeing the crime? Most important of all, where is the money?
Episode 10
The Kahuna
Tue, Dec 18, 197950 mins
Kimo and Truck are sent to a remote location to help a scientist who is investigating several mysterious deaths by inhalation. Before long, Truck also shows signs of illness which he attributes to unknowingly violating a native curse (later revealed to be as a result of being exposed to plutonium on a previous assignment). The attractive doctor and Kimo hit it off, which makes both of them targets for the murderer, who is secretly harvesting coral from offshore and selling it.
Episode 11
Labyrinth
Tue, Dec 25, 197950 mins
A plastic surgeon's wife is kidnapped, and against his wishes Five-O is brought in to help find her. McGarrett and Kimo are puzzled by the doctor's apparent lack of concern for his wife, and Five-O's investigation of their relationship turns up some equally disturbing facts -- such as how her face was completely different when they lived on the mainland.
Episode 12
School for Assassins
Tue, Jan 1, 198050 mins
Five-O is assigned to provide security for a meeting involving a Middle Eastern sheik from OPEC, who is coming to Honolulu to negotiate with oil magnate John Ellington. McGarrett gets information that someone may be planning to disrupt the meeting, and sends Kimo to infiltrate what turns out to be a school for assassins operated out of an estate on Oahu -- whose best student, Kelsey, is tasked with assassinating the OPEC representative.
Episode 13
For Old Times Sake
Tue, Jan 8, 198050 mins
A school for wayward girls, run by a friend of Steve McGarrett's, needs $15,000 for overdue taxes or the school will be closed. Former counterfeiter Willie McFee, a flower breeder who also is a general handyman and gardener for the school, decides to make one last print run with a set of near-perfect $20 plates he once crafted - but a mainland crime boss gets word that Willie's plates have surfaced, meaning that he can try to steal them for himself.
Episode 14
The Golden Noose
Tue, Jan 15, 198050 mins
The next-to-last show to be filmed features an escaped convict posing as a diplomat from a Far Eastern country in order to get at the country's store of gold bullion in a Honolulu bank. He hires experts with lasers to penetrate the light-beam screen surrounding the bank vault, burn a hole in the vault's floor, heat the gold until it liquefies and drain it through ceramic tubing. McGarrett gets a clue to what's happening when the bank's thermometer (located near the vault) starts to freak out, but he still has to find the thugs' hideout before they solidify the gold and escape.
Episode 15
The Flight of the Jewels
Sat, Mar 1, 198050 mins
Using radio-controlled model airplanes, three college students engineer the theft of the Hawaiian crown jewels.
Episode 16
Clash of Shadows
Sat, Mar 8, 198050 mins
Israel's celebrated Nazi-hunter Yuri Bloch has apparently been killed in Honolulu while trying to gather information about a war criminal named Emil Klaus. Knowing that Bloch would only have come to Hawaii if a former Nazi were hiding there, McGarrett and Five-O conduct their own search for Klaus -- while Bloch's partner lies badly wounded in a safe house, and the woman caring for him does what she can to assist while undercover.
Episode 17
A Bird in Hand...
Sat, Mar 15, 198050 mins
During a stopoff on a bird-watching expedition, tourists photograph an old sugar mill. They don't know that the mill is a front for a gold-smuggling operation and that one of their photographs has caught the leader through a window. The leader sends a pack of goons to kill everyone in the tourist party and steal their film. McGarrett and a newspaper journalist, who got hold of the pictures, must try to identify the man in the picture and take down his operation before he gets them.
Episode 18
The Moroville Covenant
Sat, Mar 29, 198050 mins
Paul Burke guest stars as attorney David Lawrence, a political candidate whose promising bid for the U.S. Senate is endangered by the murder of a man who tried to blackmail him. Although Lawrence swears he knows nothing about the murder, he admits that the dead would-be extortionist did have knowledge about him that could have destroyed his political future.
Episode 19
Woe to Wo Fat
Sat, Apr 5, 198050 mins
The series concludes with the final showdown between McGarrett and Wo Fat. Three scientists who have disappeared have one thing in common, they all attended a symposium on possible space-based, laser defense systems. McGarrett impersonates a fourth scientist, Dr. Elton Raintree, who attended the same gathering and is soon abducted. Wo Fat is behind it all and wants the scientists to complete their work and produce such a device.
