Seasons & episodes
S9 · E20Blood Money Is Hard To Wash 1977-03-03 · 60 min
A gangster attempts to buy an interest in a football club so that he can launder money through it.
S9 · E21To Kill A Mind 1977-03-17 · 60 min
While searching for parts from a sunken Soviet submarine, McGarrett become suspicious about the particular parts that are being recovered.
S9 · E22Requiem For A Saddle-Bronc Rider 1977-03-24 · 60 min
A missing rodeo cowboy and the murder of a young couple pose a puzzling mystery for Five-O.
S9 · E23See How She Runs 1977-03-31 · 60 min
The daughter of a LA detective and friend of McGarrett is framed for murder and then joins a cult.
S9 · E24Practical Jokes Can Kill You 1977-05-05 · 60 min
A gang of thieves steal army rifles by peculiar means - hang-gliding into the armoury!
S10 · E1Up The Rebels 1977-09-15 · 60 min
An Irish terrorist uses disguise and deception in order to be able to smuggle explosives for the Troubles.
S10 · E2You Don't See Many Pirates These Days 1977-09-22 · 60 min
When a sea-freighter is hijacked, the wealthy millionaire owner calls in Five-O, but all is not how it seems...
S10 · E3The Cop On The Cover 1977-09-29 · 60 min
McGarrett must solve both a mysterious kidnapping and the problem of having a nosy reporter analysing his every move.
S10 · E4The Friends Of Joey Kalima 1977-10-13 · 60 min
McGarrett engages in a personal struggle to clear the record of an officer and close friend accused of criminal activity.
S10 · E5The Descent Of The Torches 1977-10-20 · 60 min
Five-O must find out whether the death of an archaeologist is linked to his supposed desecration of tomb of King Kamehameha.
S10 · E6The Ninth Step 1977-10-27 · 60 min
The return of a disgraced alcoholic policeman causes extra problems in the pursuit of a pair of armoured truck robbers.
S10 · E7Shake Hands With The Man On The Moon 1977-11-10 · 60 min
McGarrett must deal with an astronaut turned real-estate salesman in order to crack the case of a murdered reporter.
S10 · E8Deadly Doubles 1977-11-17 · 60 min
When a Russian tennis star wants to defect, McGarrett must work to prevent an international incident.
S10 · E9Deep Cover 1977-12-08 · 60 min
A secret submarine, the murder of a Navy officer and strange amnesia create a puzzling case for Steve McGarrett.
S10 · E10Tsunami 1977-12-22 · 60 min
A gang of university students plan a hoax tidal wave in order to steal priceless jewelry.
S10 · E11East Wind -- Ill Wind 1977-12-29 · 60 min
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.
S10 · E12Tread The King's Shadow 1978-01-05 · 60 min
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.
S10 · E13The Big Aloha 1978-01-12 · 60 min
A young doctor is suspected of having been involved in the murder of his mentor.
S10 · E14A Short Walk On The Longshore 1978-02-02 · 60 min
In order to find out the identity of the murderer of a union leader, McGarrett goes undercover as a longshoreman.
S10 · E15The Silk Trap 1978-02-09 · 60 min
An up-and-coming young politician is blackmailed in order to affect his leadership of an congressional investigation.
S10 · E16Head To Head 1978-02-16 · 60 min
While pursuing a drug dealer, McGarrett also has to contend with a federal agent.
S10 · E17Tall On The Wave 1978-03-02 · 60 min
Danno must deal with a surfer, one of his friends, who is suspected of the murder of a girl.
S10 · E18Angel In Blue 1978-03-09 · 60 min
A female undercover cop threatens the progress of an investigation when she starts a relationship with a man connected to the case.
S10 · E19When Does A War End? 1978-03-16 · 60 min
A Japanese businessman comes under attack from a young man whose father suffered in an Japanese Prisoner of War camp.