S7 E1 • The Young Assassins

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

Première diffusion : 10 septembre 1974

S7 E2 • A Hawaiian Nightmare

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.

Première diffusion : 17 septembre 1974

S7 E3 • I'll Kill 'Em Again

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.

Première diffusion : 24 septembre 1974

S7 E4 • Steal Now -- Pay Later

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

Première diffusion : 1 octobre 1974

S7 E5 • Bomb, Bomb, Who's Got The Bomb?

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.

Première diffusion : 8 octobre 1974

S7 E6 • Right Grave, Wrong Body

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.

Première diffusion : 15 octobre 1974

S7 E7 • We Hang Our Own

When his son is beaten to death, a powerful cattle baron takes matters into his own hands, and McGarrett and Five-O must prevent the rule of law from breaking down.

Première diffusion : 22 octobre 1974

S7 E8 • The Two-Faced Corpse

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

Première diffusion : 29 octobre 1974

S7 E9 • How To Steal A Masterpiece

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

Première diffusion : 12 novembre 1974

S7 E10 • A Gun For McGarrett

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…

Première diffusion : 26 novembre 1974

S7 E11 • Welcome To Our Branch Office

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

Première diffusion : 3 décembre 1974

S7 E12 • Presenting... In The Center Ring... Murder

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

Première diffusion : 10 décembre 1974

S7 E13 • Hara-Kiri: Murder

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

Première diffusion : 31 décembre 1974

S7 E14 • Bones Of Contention

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

Première diffusion : 7 janvier 1975

S7 E15 • Computer Killer

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.

Première diffusion : 14 janvier 1975

S7 E16 • A Woman's Work Is With A Gun

Three women desperately in need of money take to armed robbery of tourist buses as a way to raise some quick cash.

Première diffusion : 21 janvier 1975

S7 E17 • Small Witness, Large Crime

When a young boy is arrested as a witness to a murder, McGarrett must contend with a fiery deputy public prosecutor.

Première diffusion : 28 janvier 1975

S7 E18 • Ring Of Life

A million dollar reward for the return of five figurines sparks off a trail of murder and theft that leads to Hawaii.

Première diffusion : 4 février 1975

S7 E19 • Study In Rage

When a psychotic man kills his doctor, Five-O must use a unfinished painting to gather clues to his whereabouts.

Première diffusion : 11 février 1975

S7 E20 • And The Horse Jumped Over The Moon

An elaborate sea and air scheme for heroin smuggling goes unnoticed until one of the gang tries to sell out their plan for a fix of heroin.

Première diffusion : 18 février 1975

S7 E21 • Hit Gun For Sale

McGarrett must prevent a mob war by tracking down an unknown hitman and his intended target.

Première diffusion : 25 février 1975

S7 E22 • The Hostage

When a deranged ex-Army officer shoots a policeman and takes a young girl hostage, McGarrett disagrees with a police captain over the best way to free her.

Première diffusion : 11 mars 1975

S7 E23 • Diary Of A Gun

A Saturday Night Special passes from person to person and causes Five-O trouble and others misery.

Première diffusion : 18 mars 1975

S7 E24 • 6,000 Deadly Tickets

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

Première diffusion : 25 mars 1975