E1 - Up The Rebels

Aired: September 15, 1977

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

E2 - You Don't See Many Pirates These Days

Aired: September 22, 1977

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

E3 - The Cop On The Cover

Aired: September 29, 1977

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

E4 - The Friends Of Joey Kalima

Aired: October 13, 1977

McGarrett engages in a personal struggle to clear the record of an officer and close friend accused of criminal activity.

E5 - The Descent Of The Torches

Aired: October 20, 1977

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

E6 - The Ninth Step

Aired: October 27, 1977

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

E7 - Shake Hands With The Man On The Moon

Aired: November 10, 1977

McGarrett must deal with an astronaut turned real-estate salesman in order to crack the case of a murdered reporter.

E8 - Deadly Doubles

Aired: November 17, 1977

When a Russian tennis star wants to defect, McGarrett must work to prevent an international incident.

E9 - Deep Cover

Aired: December 08, 1977

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

E10 - Tsunami

Aired: December 22, 1977

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

E11 - East Wind -- Ill Wind

Aired: December 29, 1977

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.

E12 - Tread The King's Shadow

Aired: January 05, 1978

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.

E13 - The Big Aloha

Aired: January 12, 1978

A young doctor is suspected of having been involved in the murder of his mentor.

E14 - A Short Walk On The Longshore

Aired: February 02, 1978

In order to find out the identity of the murderer of a union leader, McGarrett goes undercover as a longshoreman.

E15 - The Silk Trap

Aired: February 09, 1978

An up-and-coming young politician is blackmailed in order to affect his leadership of an congressional investigation.

E16 - Head To Head

Aired: February 16, 1978

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

E17 - Tall On The Wave

Aired: March 02, 1978

Danno must deal with a surfer, one of his friends, who is suspected of the murder of a girl.

E18 - Angel In Blue

Aired: March 09, 1978

A female undercover cop threatens the progress of an investigation when she starts a relationship with a man connected to the case.

E19 - When Does A War End?

Aired: March 16, 1978

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

E20 - Invitation To Murder

Aired: March 23, 1978

McGarrett must deal with an apparent mass murderer when a will creates a fortune for the last family member left alive.

E21 - Frozen Assets

Aired: March 30, 1978

A cryogenics institute comes under suspicion when an investigative writer becomes involved.

E22 - My Friend, The Enemy

Aired: April 13, 1978

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

E23 - A Stranger In His Grave

Aired: April 27, 1978

Five-O become involved in a complex case of body-switching, mystery investments and suitcases full of money.

E24 - A Death In The Family

Aired: May 04, 1978

Five-O's world is shattered when mobsters catch Chin Ho undercover and order him to be killed.