Hawaii Five-O Episode Rating Graph

The killing of an important pimp threatens an all out war between two competing vice empires.

Murders are being committed seemingly at random every six weeks, and McGarrett is at a loss to understand the motives for these crimes. However, a newspaper may hold the answer.

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.

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.

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.

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...

When an airline stewardess and a hang-gliding instructor are murdered, Five-O must find the killers.

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

Danno's Aunt Clara becomes acquainted with a man on the plane to Honolulu, but becomes concerned about him afterwards. Dan, Steve and the others ignore her at first, but then the man turns up dead...

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.

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.

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

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

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.

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

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

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.

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…

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.

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.

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.

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...

Criminals threaten to use a special type of moth to wipe out the sugar cane on Hawaii and destroy the industry.

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

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

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.

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.

When a singer, Joey Rand, finds that his career doesn't pay well enough, he turns to cat burglary. However he doesn't reckon on Hawaii Five-O.

When McGarrett is shot and badly wounded on a beachside jog, Danno and the team must work feverishly to find the culprit and prevent him from committing any more murders.

Victor Reese and his wife Nora are conning rich widows out of their savings, and then poisoning them and dumping them in the ocean. McGarrett and company hatch a plan to use a female officer to trap the duo.

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.

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.

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.

A husband and wife team of scam merchants get caught between some of Hawaii's most powerful mobs.

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...

A group of seemingly harmless birdwatchers are the target of a vendetta. Five-O must discover why they were a target and stop any further violence.

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.

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...

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.

A cowboy fears the loss of his land to a crooked estate agent and accidentally kills him by hitting him. McGarrett and his team must track the cowboy into the mountains and persuade him to give himself up.

A group of high society men set out to see that justice is done - the catch being that it is justice on their terms only...

Jessica Humboldt, an astrologer and friend of Agnes DuBois, comes to McGarrett with news that a forthcoming match will be disastrous for a boxer. McGarrett must overcome his suspicions and crack the case.

Tony Alika and Guido Marioni, killer of Kimo's family, together hatch a plot to frame and embarrass the Five-O team by making them look stupid or corrupt.

When a woman is stalked by a strange figure, she seems to be seeing things and her friends are worried as to her mental health. However, events prove her case and an accomplice is revealed...

McGarrett and Kimo must stop a gang of trained assassins from disrupting a meeting of energy ministers.

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

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

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.

When a rich socialite is kidnapped, her husband insists that Five-O stay out of the case. However, his reasons may not all be on the level as events take a series of twists and turns...

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.

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.

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.

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.

When two surfer bums use a gun to rob a shop, it starts off a trail of death and misery involving children, politics and blackmail.

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

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

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.

McGarrett gets a phone call from Singapore and goes to rescue Nicole Wylie, a witness who has changed her mind and wants to testify. However, the pair must face many dangers on their return trip back to Hawaii.

Don Miles, a health freak, uses a hanging-type exercise to promote his wellbeing, but his girlfriend Wanda tries it, and seemingly dies in the attempt. However, all is not what it seems…

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.

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 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.

When a sea-freighter is hijacked, the wealthy millionaire owner calls in Five-O, but all is not how it seems...

When a young son of a businessman escapes from captivity by ‘The Devil' and ‘Mr. Frog', Five-O must recover the $300,000 ransom money that the desperate father paid.

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.

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.

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.

Two young men play an increasingly dangerous and deadly game for the attentions of a beautiful but spoiled heiress, who plays them off against each other.

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.