Hawaii Five-O Episode Rating Graph

Danno is found in the back of a truck, dazed and confused, and McGarrett and the others must help him piece together how he came to be in that situation.

A doctor tracking venereal disease is murdered, and Five-O must track the series of encounters to find out who is a carrier. Their investigation is made doubly important by the murder of a young woman who is close to a upcoming politician. He seems a likely suspect but McGarrett suspects a deeper plot.

Five-O must deal with treason, murder and double-crosses in order to solve the case and prevent the U.S. from being flooded by fake currency.

When a letter bomb kills a Naval Officer whilst McGarrett is on Navy Duty, he is called upon to investigate and uncovers a plot involving an old nemesis...

Labouring under a ban on cooperation by native Hawaiians because of a Kahuna, McGarrett must try to prevent war on the streets...

When a large amount of diseased rats are found on a boat with all the crew dead, Five-O must contend with an outbreak of bubonic plague.

A string of five murders of wealthy men leads McGarrett to a crooked inheritance scheme.

McGarrett must counter a threat by international terrorist Erich Stoss to use a fungus to wipe out Hawaii's sugar cane, half of the world's supply.

Wo Fat is suspected of being behind the theft of a mobile ICBM device, and McGarrett with other top officials must stop him selling it off to the highest bidder.

A private investigator, Sam Tolliver, arrives from Texas to help an old friend who is being blackmailed and is at risk of being killed if he doesn't pay up, but he ends up wanting to become part of the blackmail operation.

The series concludes with the final showdown between McGarrett and Wo Fat. Three scientists have gone missing. They have one thing in common: they all attended a symposium that discussed a possible space-based, laser defense system. 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.

McGarrett is suspicious of an aide who arrives in Hawaii to retrieve millions of dollars held in trust for a Southern Asian state and he must prevent a daring gold robbery.

An Irish terrorist uses disguise and deception in order to be able to smuggle explosives for the Troubles.

A masterful forger plans a massive robbery of Navy funds, and McGarrett is made to look rather inept...

A disturbed young man steals nerve gas to use against a visiting royal family as revenge for the death of his father.

A vice-principal enlists the help of his students and a submarine to smuggle drugs.

McGarrett must try his utmost to foil Wo Fat's plans which include hostages and brainwashing.

A glamorous woman sets up an opal smuggler so her accomplices can rob both the smuggler and a jewellery store at the same time.

Dominick Vashon, the patriarch of the clan, makes his attempt to bring down McGarrett and Five-O.

Army computer technician Jack Gulley kidnaps a scientist and then uses a planned heist by three accomplices on a military base to divert Five-O's attention from his sale of the scientist to the highest bidder.

Five seemingly good citizens with different motives band together to steal $6,000,000 while McGarrett is away on Maui at a trial.

The son of the baseball player becomes the vital witness in a murder, but he is reluctant to tell either his father or Five-O of the crime.

Wo Fat and other top international agents converge on Hawaii to place bids on printing plates for twenty dollar bills, which are in the possession of a former friend of McGarrett.

When a convicted murderer, Harry Kellem, hears a dying man say he committed the crime that Kellem was jailed for, he takes a doctor hostage and McGarrett must negotiate his way out of the situation.

Five-O search for the criminals who have set up Hawaiian singer and ecologist Jimmy Nuanu as the fall guy for a sewage plant bombing.

When a dictator's plane is diverted to Hawaii as part of a plan to kill him, McGarrett must deal with the complex politics of the situation and protect the hated leader.

Five-O's efforts to rescue a young boy from kidnappers go wrong when Kono is captured and beaten. An angry McGarrett must work out a way to rescue Kono without further endangering him.

When the boxing son of a policeman, Phil Kalama, is killed, he starts a personal vendetta, and McGarrett must both solve the crime and stop Kalama from committing another murder.

When Wo Fat steals toxins in an attempt to take out the leaders of Communist China, McGarrett must track him to Hong Kong.

A middle-aged mainland hardware salesman uses a prostitute, and then witnesses her murder by a mobster. He refuses to testify because of the damage to his reputation and that he doesn't want to be involved. McGarrett must persuade him to do the right thing.

McGarrett is caught and cocooned, and must escape this torture and shut down Wo Fat's operation.

McGarrett is the top suspect in the murder of his girlfriend, and the evidence against him is seemingly overwhelming...

An army sergeant and a office worker have a scam in which they use bar girls to claim G.I. widow benefits, and then murder them to take the cash. McGarrett and company must use the girls to get to the core of the plot.

After a government agent is murdered, McGarrett must identify the traitor in a scientific facility.

A hit and run incident leads Five-O to a gambling syndicate and Officer Welles's brother.

A criminal, Hobart, is robbing liquor stores using a policeman's former gun, but the officer wants it back as he used it to kill a bankrobber five years before and the body has been uncovered.

Danno and a college professor are kidnapped by a revolutionary group of young radicals led by a hardened criminal.

A nuclear scientist becomes involved in an extortion plot when a gang threaten to explode a small nuclear weapon somewhere in Honolulu.

Danno shoots an apparently armed teenager but finds that he was mistaken, and public opinion and the teen's brother turn against him. McGarrett must act to defuse the potentially explosive situation.

Several faces from the past reappear as McGarrett must stop Wo Fat from carrying out his plan, a ninety second attack on a missile tracking base.

A psychiatric worker, George Loomis, is trying to drive a fellow Vietnam veteran Ted Frazer crazy in order to cover up the fact that he massacred his own platoon during an action. Loomis kidnaps boys and drugs Frazer to make it look like Frazer is mad and to blame for the tragedy. McGarrett and the team must unravel this web of lies and clear Frazer.

Two military policeman spot John Mala, a man who McGarrett has helped in the past, but who has gone AWOL. One of the policemen is shot, and tensions rise as Five-O and the army police clash in their techniques of investigation and their treatment of the local population.

Danno is taken hostage by a Vietnam veteran who is suffering delusional flashbacks and sees everyone as forces sent to kill him.

A young singer, Bobby George, plans his own kidnapping as a stunt, but when his father offers $500,000 for his release, his co-conspirators decide to double-cross him and take the money.

A local thug, Piro Manoa, is trying to create the impression of corruption in the Five-O force, and Duke is implicated in a murder. McGarrett and the team, with new recruit Ben Kokua, must save Duke's position and work out the plot of the organisation behind the false accusations.

A career criminal, Connors, fools McGarrett and the team into protecting the wrong bank, and robs a nearby one, taking the wife of the manager hostage. Things turn ugly when one of his goons assaults and murders her. McGarrett must race to capture Connors before he can do any more damage.

McGarrett must protect a protect a mob underboss so he is able to testify against his superior, Joe Matsukino. However, Matsukino has many tricks up his sleeve to silence his former colleague permanently…

Vic Tanaka is murdering women and painting their faces to resemble a prostitute he once knew, who is now happily married. McGarrett and his team must find the killer before he does any more damage.

McGarrett finds himself stymied when Hawaiian nationalists and local underworld mobsters clash over a union election.

Five-O must find out whether the death of an archaeologist is linked to his supposed desecration of tomb of King Kamehameha.

McGarrett must solve both a mysterious kidnapping and the problem of having a nosy reporter analysing his every move.

A escaped convict may well have a strong case of innocence, when Five-O become involved in the paranormal...

Three boys commit a gang rape on a waitress, but one is the son of a Senator and the crime is covered up...

Five-O works with a air traffic investigator in order to put a stop to illegal ticket sales which have already cost several lives.

A amputee with no hands sets out to kill every police officer who contributed to his injury, and that includes Steve McGarrett.

A ten year old case is reopened when an archaeological dig unearths the skeletons of two murder victims.

Danno's past comes back to haunt him when the brother of a young boy he shot is released and wants revenge. The brother takes Chin Ho, Jenny and others hostage in McGarrett's office and threatens to blow them up, and Danno must resolve the tense situation.

A winning lottery ticket drags an army private into a the murky world of mob politics and vice.

Gangster Johnny Oporta arranges for his enemies to be murdered and then covers up his crimes by incinerating their bodies. McGarrett and the others must stop this murderous spree.

A tsunami warning is called and a geneticist is evacuated from a conference. He is then kidnapped under the orders of Wo Fat, but he uses his diabetic medical condition as a ploy to stop Wo Fat from carrying out the plan to return him to China.

A Japanese World War II veteran, Yoshio Nagata, escapes from a mental hospital and tries to carry out his wartime orders to blow up a refinery.

When a girl is found murdered and numbered 'one', McGarrett suspects a serial killer. However the killer seems to be very selective in targeting members of a particular company, and suspicion soon falls on two brothers who stand to inherit the firm from their aged aunt.

Five-O must act swiftly when the daughter of a top neurosurgeon is kidnapped by Wo Fat in order to make the surgeon operate on a wounded U.S. undercover agent who is carrying secret inforrmation of use to the Chinese.

Five-O probes into the death of an official who was instrumental in the development of the islands, and discovers a tangled web of lies and deception.

Dr. Alexander Kline, a biological scientist, views his work as evil, and to prove it, he plans to unleash a deadly germ that would kill thousands. Three dead cows lead McGarrett on a desperate chase to track down the toxin, involving a friendly telephone operator and top Washington agents.

A man is found dead after having been robbed by a motorcyclist with a gun, and McGarrett is shocked to discover that the man was suffering from bubonic plague. The islands are quarantined, and the team must follow a series of clues to discover the cause of the outbreak.

Big Chicken returns in a tense prison hostage drama when McGarrett has to give himself over to the criminals as a bargaining chip and use psychology to take control of the situation.

A aging crook decides to use dollar bill printing plates he made to raise cash for a charity, but he fails to realise the trouble that this will cause.

Millicent Shand returns and claims that her niece's husband has faked his own death in order to get his hands on $500,000.

When a robbed bank vault shows no signs of break-in, an inside job seems the likely solution. McGarrett's trail of clues leads him back to the builder of the vault and his wife...

The death of a prominent politician reveals a strange love triangle.

Danno is surprised when he bumps into a former flame and even more concerned when she seems to be involved in criminal activities.

McGarrett is the lone hold-out in a trial where the guilt of the accused seems certain.

An assassin who doesn't know he's an assassin? Sounds like a punch line from "The Naked Gun," but it's the story of this episode, where a diplomatic courier with a briefcase chained to his wrist is hypnotized and programmed to rig the case with a bomb. When Danno goes undercover to ferret out the assassination ring, he himself is brainwashed and programmed to kill McGarrett.

When an astrologer visits McGarrett to inform him of a murderer with a terrible temper, his antagonism lessens when her assumptions seem to be partly true.

The daughter of Attorney General John Manicote is kidnapped by a deranged rapist and murderer, and Steve must not only contend with the criminal but Manicote's emotional state as well...

Two seemingly unconnected deaths lead McGarrett into a desperate race to prevent the assassination of a visiting Sheikh.

A clear cut murder case against an island mobster is derailed due to McGarrett.

When Five-O fail to prevent a series of thefts at dockside warehouses, an influential owner creates trouble for McGarrett.

Wo Fat returns to Hawaii in order to have a Chinese diplomat whom he classes as a foolish peace-maker assassinated.

Two conmen use a gang of Five-O lookalikes and doubles to extort money from Honolulu businessmen.

Five-O must investigate why three infallible security systems are failing to prevent the theft of priceless artworks.

The son of a Japanese businessman is kidnapped and held in a capsule underwater until a $1.5 million dollar ransom is paid...

Dan Williams's fiancee is murdered by a strangler who writes poetry in lipstick on his victims' legs. Danno resolves to catch the culprit who has other murderous plans to carry out.

McGarrett is framed in an elaborate set up by Wo Fat, and has to contend with a foreign double amongst other problems.

A psychotic man named Ralston is killing the wives of members of his army unit, and Five-O, including Kono on his last case, must stop him before he commits any more crazed attacks.

A crazed electronics wizard threatens the lives of a psychiatrist and his patients by using electronic devices and gadgets.

Five-O has a suspect for a murder, but they have one problem. How can the suspect have been in two places at the same time?

McGarrett and company must break through a tissue of lies in order to protect a Russian defector from being killed.

Two simple criminals kidnap a young girl, and hide out in a bunker at Diamond Head. McGarrett must unravel the reason why they are there and get the girl safely away from them.

A travel agent who operates gambling trips is killed in order to send a warning to others that the syndicates will not tolerate competition.

Chin Ho must face the fact that his daughter, Alia, is in love with the son of a local criminal under investigation, and that she plans to get married to him.

A burglary at the home of a well known island family sets off a series of events that ends in murder.

A single person is holding out in a Five-O trial, and McGarrett and the team have to find out who is stalling and why they are doing it.

A family of white-trash mass killers arrive on Hawaii after wreaking a trail of devastation on the mainland, and McGarrett must catch them before they can do more damage on the islands.

Harry Foxton, a gambler, is himself the subject of huge bets over what hour he will die. McGarrett must work out the gambler's complex relationships to get to the bottom of this case.

A mock military emergency leaves a bank open for a robbery, and Five-O must travel to the opposite side of Oahu to find out more in their investigation.

A pair of crooks team up with local criminals and use phony diamonds as bait to prey on wealthy male tourists. McGarrett and Five-O must shut off this sinister racket.

The son of a Federal Narcotics officer becomes involved in a heroin refining operation.

A right-wing crackpot, Cord McKenzie, metes out 'justice' to people who have been found innocent on technicalities or released early. He thinks he is helping the police, but McGarrett thinks otherwise.

A geophysics expert, Bernard Brown, is heavily in debt, so he comes up with a plan to cause an explosion in the Hawaii Volcanoes National Park, which will cause lava to pour all down the hillside and into the city of Hilo, unless the Governor comes up with half a million dollars as a ransom.

Eddie Josephs is a paranoid schizophrenic who is carrying out murders based on old Five-O cases. McGarrett must follow his clues and catch him before more people die.

McGarrett and Five-O need to find out why a Japanese banker ritually killed himself and catch a true criminal into the bargain.

Five-O must find a female courier who witnessed a murder before a hitman can...

When a woman dies due to heroin packets bursting inside her and the Governor is implicated, McGarrett and Danno head off to Singapore to discover a smuggling operation.

Five-O must close the heroin smuggling operation to exonerate the Governor and catch the figures behind the scheme.

A group of terrorists capture a female officer and use her to further their aims, and McGarrett and the team must find a way to take them out without endangering the life of Officer Dean.

A young man on vacation has strange visions that lead him to the site of an old murder and help him discover a lost family.

When two healthy young people die mysteriously, local traditions prevent post mortems, and a strange conspiracy is gradually uncovered when Truck seems to fall under the power of a Kahuna...

A gang of clever students use radio-controlled planes to execute the theft of Queen Liliokalani's jewels.

The murder of a Nazi-hunter and discovery of a World War II medal set McGarrett and the team on the trail of a Nazi war criminal living in Honolulu...

McGarrett must deal with the conflicts between four gangs of differing ethnic background, and try to uncover illegal activities.

McGarrett gets a surprise birthday party, but when he goes to pack the presents in his car, it explodes and blinds him. Danno, Chin Ho and Kono must work to catch those responsible, whilst McGarrett has to get used to not having his eyesight.

A research scientist, Dr. Royce, is set up by revolutionaries to be transported away from the islands in a submarine. McGarrett must stop this from happening and also has to contend with the interference of federal agents in the case.

A British agent, Harry Wells, arrives in Hawaii in pursuit of a turncoat, but not all is what it seems for Five-O...

A woman attempts suicide in order to get her boyfriend to come out into the open and expose himself to an assassination attempt.

When a man is found dead with gold dust on him, McGarrett and his team must investigate where the stolen gold came from and how it is being bought onto the market.

A series of rapes and murders occur, and the main suspect seems to be a police officer...

While investigating a robbery and kidnapping, the trail of clues leads McGarrett and the team to an ocean liner with a deadly passenger.

A sophisticated thief is selling his goods to legitimate businessmen, and Five-O must find a way of trapping him.

Senator Harlan Henderson suffers from multiple personalities, and one side of him wants to kill himself. However, he ends up blowing up his secretary, and McGarrett uses handwriting and a diagnosis from a psychiatrist to try to crack the case.

After an attempt is made on Steve McGarrett's life, he is drawn towards a female art dealer, but she too may not be good for his health…

A Honolulu murder is mysteriously linked to a human fossil smuggled out of China in the Second World War.

An investigation into a murder is sent off track through the modification of computer information, and Five-O must use the latest technology to rescue the case.

A crooked contractor and a buildings inspector are under suspicion after the new Global Trade Center in Honolulu goes up in flames.

A lady singer is kidnapped and it looks as if she and her captors have died at sea.

A gang of university students plan a hoax tidal wave in order to steal priceless jewelry.

McGarrett becomes involved in a love triangle between a young local man, a rich girl and her father who hates the Hawaiian origins of the boy.

When a photographer takes a picture of a politician making a deal with an underworld figure, he tries blackmail. However, he is not prepared for the ruthless nature of the mobsters.

Five-O must work with a Japanese officer to find the source of handsguns that are flooding the black market in Tokyo.

Camilla Carver, a con-artist, blackmails a politician to take her to an event where she can steal the priceless Queen of Polynesia emerald and swap it for a fake. However, McGarrett and the team are at the event and make sure that neither the gem, Carver or her accomplice vanish.

The wife of an arms dealer is kidnapped by revolutionaries who want the guns diverted from their original destination, but the arms dealer himself is not as innocent as matters would indicate…

A gangland execution investigation takes a turn for the peculiar when it is found that the victim had two identities.

McGarrett offers himself as a hostage exchange, but is then put on 'trial' by Honore Vashon.

Ben Tanaka, a well-known ecologist, seems to be behind the kidnapping of a wealthy land developer's wife, but all is not as it seems and a conspiracy gradually reveals itself.

A gangster attempts to buy an interest in a football club so that he can launder money through it.

The return of a disgraced alcoholic policeman causes extra problems in the pursuit of a pair of armoured truck robbers.

A Japanese businessman comes under attack from a young man whose father suffered in an Japanese Prisoner of War camp.

Five-O must deal with the kidnapping of an Arab princess, and Steve must also deal with an Italian female journalist's constant interruptions.

While investigating the death of a security agent at an airport, McGarrett comes into contact with a gang who hijack cargo.

McGarrett becomes involved with the Vashon mafioso family after the youngest member, Chris, is implicated in a daring raid on a hotel.

McGarrett agrees to let Toni, a tough female convict, get married and have a honeymoon in protective custody as long as she will testify against a local hood.

McGarrett and the team must find out who is behind a series of ecological stunts, when it is feared that a company executive will be their next target.

McGarrett must solve a daring bank robbery committed during the King Kamehameha Day Parade under the cover of a historic re-enactment.

When an Asian ex-leader dies in a seemingly accidental swimming incident, his wife is convinced that he was murdered by forces from their home country.

While pursuing a drug dealer, McGarrett also has to contend with a federal agent.

A policeman who was kicked off the force blames McGarrett and Five-O and plans to kill the Governor.

The murder of island prostitutes seems to be linked to an extortion racketeer who is determined to make a return...

A secret submarine, the murder of a Navy officer and strange amnesia create a puzzling case for Steve McGarrett.

Four university students hatch a plot to steal the robes of King Kamehameha, and McGarrett and the team must apply pressure to the gang's weak point to retrieve the robes and catch the thieves.

Five-O is up against a sophisticated gang who have come to Hawaii to cash $750,000 of traveller's cheques.

Peter Corman is murdered during a game of poker, and his brother Lorenzo arrives in Hawaii for revenge. McGarrett must work out what happened and prevent Lorenzo from carrying out his intentions.

Chin Ho is accused of bribery, and cannot provide alibis for the nights in question. Worse, he is called to the middle of nowhere for a set-up. Chin's position is threatened, and the Governor orders an inquiry. McGarrett and the others must work out how Chin was framed and clear him of the accusations.

Lew Morgan and his wife are friends of Danno, but she is murdered, and Morgan sets out to find the culprit. However, his wife seems to be hiding secrets that may have caused her death.

Dr. Kline's deadly toxin is lost, he is having second thoughts about his plan, and McGarrett has to find the vial before it disintegrates and poisons the whole island. Already the toxin is doing its deadly work as innocent people come into contact with it.

When a lawyer is murdered, his wife becomes the top suspect and McGarrett investigates. However, matters are complicated by the fact that the woman had a relationship with McGarrett, and he jeopardises his job because of this.

Five-O investigates the death of Vietnam hero Jack Rigney, who fell from a balcony. His father is a World War II veteran, but his brother Michael is a peacenik, and Danno goes undercover as a draft dodger to help solve the mystery of Jack's death.

The wife of a convicted man fakes evidence in a new crime so that McGarrett will have to re-open her husband's case.

A baseball player, Lon Phillips, brings his backward son to Hawaii to escape threats on his life on the mainland.

McGarrett finds holes in a convict's story and a husband becomes a suspect in the murder of his wife.

A veteran criminal who has already had dealings with Five-O escapes, and plans to steal millions of dollars from drug smugglers.

When a young woman is beaten and raped and a soldier is arrested for the crime, McGarrett begins to have doubts about his guilt.

When two of a egotistical racing driver's support staff are murdered, suspicions of sabotage fall upon his attractive girlfriend.

When McGarrett arrests a group of vigilante nationalists, hidden bombs at the courthouse threaten to destabilise the islands.