Air date: 1978-09-28

Runtime: 60 min

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

Air date: 1978-10-05

Runtime: 60 min

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.

Air date: 1978-10-12

Runtime: 60 min

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.

Air date: 1978-10-19

Runtime: 60 min

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

Air date: 1978-10-26

Runtime: 60 min

Steve is framed on the orders of a gambling syndicate, and becomes involved with a woman who is part of the case.

Air date: 1978-11-09

Runtime: 60 min

Five-O must deal with the plans of a Neo Nazi organisation to kill Bobby Tamara, the ""Hawaiian Kennedy"".

Air date: 1978-11-16

Runtime: 60 min

When a street robber claims that he stole King Tutankhamun's mask for fun, McGarrett suspects there is more to the case than simple robbery.

Air date: 1978-11-23

Runtime: 60 min

McGarrett assists a convict in his escape, so that he can go back to his gang and provide Five-O with inside information.

Air date: 1978-11-30

Runtime: 60 min

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

Air date: 1978-12-14

Runtime: 60 min

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

Air date: 1978-12-21

Runtime: 60 min

When a preacher is attacked by a man convinced that he is responsible for his wife's death, Five-O investigate more closely and discover some less than godly motives.

Air date: 1978-12-28

Runtime: 60 min

Two rival mobs attempt to take control of the disco scene in Honolulu.

Air date: 1979-01-04

Runtime: 60 min

The rival gangs are on the brink of all out war, and Five-O must struggle to stop them.

Air date: 1979-01-18

Runtime: 60 min

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...

Air date: 1979-01-25

Runtime: 60 min

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

Air date: 1979-02-08

Runtime: 60 min

A vacationing heiress seems unconcerned when McGarrett warns her that someone is after her ruby.

Air date: 1979-02-22

Runtime: 60 min

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.

Air date: 1979-03-01

Runtime: 60 min

A private detective is rescuing girls from prostitution, and using the opportunity to kill the pimps as well.

Air date: 1979-03-15

Runtime: 60 min

When the son of one of Steve's friends dies of an overdose, he goes after a doctor that he suspects of over-prescribing drugs.

Air date: 1979-03-22

Runtime: 60 min

The hunt for a high-rise killer is made more difficult for Five-O when a journalist offers to share his profits in exchange for the killer's story.

Air date: 1979-04-05

Runtime: 60 min

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.

Air date: 1979-04-05

Runtime: 60 min

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