Episode 1
When Wo Fat steals toxins in an attempt to take out the leaders of Communist China, McGarrett must track him to Hong Kong.
Episode 2
In Hong Kong, Steve is caught by Wo Fat and mentally and physically tortured by being 'reconditioned'. He must beat these problems to save the day again.
Episode 3
McGarrett must solve a daring bank robbery committed during the King Kamehameha Day Parade under the cover of a historic re-enactment.
Episode 4
The murder of island prostitutes seems to be linked to an extortion racketeer who is determined to make a return...
Episode 5
Five bodies are found in the crater of Mauna Loa contaminated by radiation from illegal plutonium, and Five-O must find and confiscate this deadly toxin.
Episode 6
Two seemingly unconnected deaths lead McGarrett into a desperate race to prevent the assassination of a visiting Sheikh.
Episode 7
A masterful forger plans a massive robbery of Navy funds, and McGarrett is made to look rather inept...
Episode 8
When yacht racers are found dead on their craft, Five-O launches a desperate search for high-seas buccaneers.
Episode 9
A escaped convict may well have a strong case of innocence, when Five-O become involved in the paranormal...
Episode 10
A press photographer is pursued relentlessly after she takes a photo of a supposedly dead gangster who has returned to the islands to take control of the local syndicate.
Episode 11
When $10 million goes missing from a crimelord, the culprit seems to be dangerously close to home...
Episode 12
Police are being lured into traps and shot, and Five-O have difficulty nailing a suspect when their primary lead turns out to be a paraplegic.
Episode 13
The boyfriend of an overdose victim re-enacts famous film murders in a revenge on all the people he sees as responsible.
Episode 14
McGarrett is the top suspect in the murder of his girlfriend, and the evidence against him is seemingly overwhelming...
Episode 15
Five-O must work with a Japanese officer to find the source of handsguns that are flooding the black market in Tokyo.
Episode 16
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...
Episode 17
A hit and run incident leads Five-O to a gambling syndicate and Officer Welles's brother.
Episode 18
A pensioner threatens to blow himself and his hostages up if he doesn't stop the demolition of his home.
Episode 19
A lady singer is kidnapped and it looks as if she and her captors have died at sea.
Episode 20
A gangster attempts to buy an interest in a football club so that he can launder money through it.
Episode 21
While searching for parts from a sunken Soviet submarine, McGarrett become suspicious about the particular parts that are being recovered.
Episode 22
A missing rodeo cowboy and the murder of a young couple pose a puzzling mystery for Five-O.
Episode 23
The daughter of a LA detective and friend of McGarrett is framed for murder and then joins a cult.
Episode 24
A gang of thieves steal army rifles by peculiar means - hang-gliding into the armoury!
