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24 Episodes 1974 - 1975
Episode 1
Tue, Sep 10, 197450 mins
A band of young radicals is killing ordinary people at random. Five-O consults an academic who is knowledgeable about such groups. The group then kidnaps Dan Williams and the academic, threatening to kill both men.

Episode 2
Tue, Sep 17, 197450 mins
A man who's an expert in both geology and explosives, owes loan sharks more than $72,000. He has planted explosives that, if set off, will cause volcanic eruptions and is demanding $500,000 from the state of Hawaii. He has killed accomplices and is prepared to go through with his threats. But he doesn't know his fed-up wife is preparing to double cross him.

Episode 3
Tue, Sep 24, 197450 mins
A nerdy bookstore clerk with an obsession for McGarrett turns deadly as he re-creates some of Five-O's most famous cases that were covered in a series of magazine articles. He is so brazen that he even calls McGarrett to brag about his crimes and sends him notes. Now McGarrett and the rest of the Five-O team must find the killer before he strikes again.

Episode 4
Tue, Oct 1, 197450 mins
Colby runs an operation that fences stolen goods with retailers enticed by too-good-to-be-true prices. Five-O enters the case when the body of a federal law-enforcement agent -- killed during a robbery on the Mainland -- is discovered in a refrigerator shipped to Hawaii. McGarrett & Co. turn up the heat as the body count increases.

Episode 5
Tue, Oct 8, 197450 mins
A series of bomb threats against a state senator culminate in a car-bomb blast that kills his secretary. But Five-O realizes that the only tie-in to the threats and explosions is the senator himself. Five-O calls in a psychologist who determines that the senator has multiple-personality disorder.

Episode 6
Tue, Oct 15, 197450 mins
A current wave of liquor store robberies and shootings are strangely linked to a fiveyear old bank robbery in which neither the quarter-million-dollar booty nor the thief was ever found. Charles Cioffi guest stars as an HPD officer, who, when the link in the crimes is uncovered, desperately hunts for the man behind the liquor store crimes.

Episode 7
Tue, Oct 22, 197450 mins
A politically powerful Big Island rancher learns that his son was killed by a blow to the head. The son was involved in a fight outside a barroom with a local. The local is arrested and, over the rancher's strenuous objections, charged only with manslaughter. The rancher plots to break into the jail and kidnap the suspect, hide him on the huge ranch and ceremoniously hang him from a tree. While Five-O frantically searches for the unlucky suspect, McGarrett finds a rock at the crime scene with blood on it. "This wasn't manslaughter, Danno ... this was murder one!" He means that after the local shoved the rancher's son to the ground, knocking him unconscious, and then fled, someone else -- the rancher's other son, in fact -- finished the job. Five-O scours the ranch to capture the rancher before he can murder an innocent man.

Episode 8
Tue, Oct 29, 197450 mins
A Honolulu businessman is found murdered on a land tract he was trying to develop. The case has all the earmarks of a syndicate hit. Five-O traces the dead man and finds that he was, in fact, a former thug who had testified and gone into the Federal witness protection program. But they find this out so easily that McGarrett begins to suspect that the mob had nothing at all to do with the murder -- someone close to the witness, who knew all about his history, killed him and pinned it on the mob. Suspicion soon falls on the dead man's wife and her lover, who were to be the beneficiaries of a $100,000 insurance policy paid by Uncle Sam if the witness was indeed whacked (the money seems like chump change when you look at the lavish mansion where the dead man lived). McGarrett and the Federal agent overseeing the witness protection program plan in Hawaii, who have often been at odds in the past, begin to collaborate in trying to fool the killer or killers into thinking the mob is after them -- because the dead man had a surgically altered face, he could be anyone, including the wife's lover.

Episode 9
Tue, Nov 12, 197450 mins
Thugs break into the heavily-guarded art room of a multimillionaire and steal a Gauguin painting worth a fortune. When Five-O comes to investigate, the millionaire, his secretary and his grandson (who are the only inhabitants of the mansion) are surprisingly uncooperative. It turns out that the old man had been planning to sell the painting and had hired two art appraisers to market it. Soon, the group receives a ransom demand. The grandson figures out a way to pay the ransom despite intense Five-O surveillance -- with grandfather, grandson and secretary all leaving to "drop off" the $250,000, leading Five-O members on a wild goose chase, and arriving at the Iolani Palace at the exact same moment. The art appraiser, who wasn't under surveillance, paid the money and got the painting back himself. This bit of mass nose-thumbing really doesn't go over well with McGarrett, who suspects the grandson of stealing the painting to get the ransom money for his own lavish lifestyle. All is not what it seems, however. When the appraisers look over the returned painting and pronounce it genuine, the grandson promptly says it's a fake. How does he know? In a roughhousing bout with a buddy, he fell onto the real painting and damaged it. That means the real painting was stolen long before; the burglary was an elaborate scheme to steal a forgery. The grandson figures out immediately who was behind the theft of the painting (and the ransom money), but is murdered before he can tell Five-O. McGarrett knows the appraisers did the dirty work, but has no way of charging them unless somehow he can find the real painting in their hands.

Episode 10
Tue, Nov 26, 197450 mins
A plaque, an award for his work in law enforcement, arrives in McGarrett's office and promptly explodes, killing one officer and injuring McGarrett. The perpetrator soon discovers McGarrett survived and begins planning his next attempt.

Episode 11
Tue, Dec 3, 197450 mins
A pair of con men sneak into Five-O' headquarters at night to photograph the layout of the offices. They then use these photos to duplicate the offices in an abandoned building, and also hire actors to impersonate McGarrett and the other members of Five-O, as part of an elaborate scheme to extort money from businessmen who may not be aware of the real location of Five-O, nor personally acquainted with its top operatives.

Episode 12
Tue, Dec 10, 197450 mins
A Chinese Minister comes to Hawaii for a conference and Steve is placed in charge of security. Unbeknownest to him Wo Fat plans to assassinate the minister but because of Steve's precautions his attempts fail. But When minister's grandson wants to go to the circus that's in town, Steve needs to make sure the minister is secured but one of his people works for Wo Fat I and informs him of his plan and tries to use it. He learns two of the performers are from Cuba and used their relative's identities to escape. He coerces them to Help him assassinate the minister.

Episode 13
Tue, Dec 31, 197450 mins
A shamed Japanese banker ritualistically kills himself, and McGarrett wants to know why. McGarrett demands answers from a prominent financial consultant, played by guest star Ossie Davis, and the deceased's assistant when Five-O discovers the pair are involved in an international swindle.

Episode 14
Tue, Jan 7, 197550 mins
Raymond Parmel, a murderous former soldier, claims to have the remains of Peking Man, the fossilized bones of prehistoric humans found in China in the 1930s that disappeared shortly after the attack on Pearl Harbor in 1941. McGarrett must deal both with him and with a professor who represents the government of the People's Republic of China, which wants to recover the bones as a Chinese national treasure, and doesn't care whether Parmel is captured or not.

Episode 15
Tue, Jan 14, 197550 mins
A man kills his estranged wife while they are arguing. He is then arrested and placed on trial. His father tries to help him by mounting a defense that claims she was alive when he left and that she was killed by a cat burglar. During the trial, a man approaches the father and offers to help him with his son's defense for a price. He starts by giving him "evidence", which he manufactured by manipulating computer records, that discredits a witness. He then sets out to find a cat burglar he can pin it on.

Episode 16
Tue, Jan 21, 197550 mins
After killing a drug dealer who stiffed her, an impoverished psychotic woman asks her friends (who are in similar dire financial straits) to go with her on a scheme to rob tour buses for the valuables the tourists are carrying. The other two women agree, but things go south when the leader, Dina, starts using her big .45 automatic far too many times.

Episode 17
Tue, Jan 28, 197550 mins
A hit man takes a shot at a man on a boat arriving in Honolulu harbor from a distance of about a half mile, using an old tower on Sand Island as his sniper's nest. An apparently homeless boy named Moki, however, witnesses the hit man as he fires the shot. The hit man gives chase, but Moki escapes. McGarrett manages to locate the boy and sends him to juvenile detention for his own protection, but he does not figure on the intervention of Frances Chai, a crusading deputy public defender.

Episode 18
Tue, Feb 4, 197550 mins
Colin Nichols is a vicious British soldier of fortune, looking for a missing art object that is part of a set of ancient Hindu figurines known as the "Ring of Life." He tortures and kills one man in Hawaii in pursuit of the missing piece, hoping to claim a $1 million reward from the government of India for return of the stolen item. The murder brings McGarrett and Five-O into the case, but it turns out that Nichols is not the only one after the missing artifact or the reward.

Episode 19
Tue, Feb 11, 197550 mins
Mike (Richard Hatch) carries a torch for Glynis (Gretchen Corbett) and concocts an elaborate scheme, involving multiple murders, so that they can be together. To catch the killer the Five-O team must analyze a surreal painting a psychiatrist made of Mike's disturbed mental state.

Episode 20
Tue, Feb 18, 197550 mins
A skydiver and a private pilot team up to retrieve heroin shipments from the ocean and then airdrop them onto Oahu, in order to evade a recent tightening against drug smuggling into Hawaii. McGarrett and Five-O learn that there is something afoot when an addict who knows of their plan is gunned down in a telephone booth as he tries to warn Five-O.

Episode 21
Tue, Feb 25, 197550 mins
McGarrett goes all out to keep the lid on a threatened organized crime war by tracking both an unknown hit man and his target.

Episode 22
Tue, Mar 11, 197550 mins
A paranoid Korean War veteran, thinking a policeman is about to arrest him for a crime he didn't commit, grabs the officer's gun and shoots him. More cops appear, so the vet pulls the wounded officer's ammunition belt free and runs into an apartment occupied by a teenage girl, locking himself and the girl inside. McGarrett and HPD's SWAT team arrive at the same time, and the leader of the SWAT team wants to blast his way into the apartment and take down the gunman, who blazes away at targets all over the place. Because somehow the gunman hasn't killed anybody yet, and because McGarrett thinks the gunman might be better off in a mental hospital, McGarrett butts heads with the HPD officer and stalls to buy time to negotiate a peaceful surrender -- although the media circus surrounding the hostage situation immensely complicates the negotiation.

Episode 23
Tue, Mar 18, 197550 mins
A Saturday Night Special handgun that appears to have a mind of its own goes from one person to another, leaving a trail of dead and injured people in its path. McGarrett and the Five-0 Team work frantically to find the gun, and stop the shootings.

Episode 24
Tue, Mar 25, 197550 mins
A criminal syndicate has stolen 6,000 airline, cruise and attraction tickets and is now shoving them down the throats of travel agencies, forcing them to pay for them and then "eat" them to avoid taking the blame for stealing stolen merchandise. To make sure the travel agencies stay in line, one of them is bombed, killing three people. An undercover agent from the mainland helps Five-O infiltrate the gang.
