1. ... And a Time to Die
Air date: 1970-09-16 · 60 min
Five-O must act swiftly when the daughter of a top neurosurgeon is kidnapped by Wo Fat in order to make the surgeon operate on a wounded U.S. undercover agent who is carrying secret information of use to the Chinese.
Open episode 1 ↗2. Trouble in Mind
Air date: 1970-09-23 · 60 min
Singer Eadie Jordan has not only a comeback concert to perform, but also a serious heroin addiction. Poisoned heroin is being peddled on the islands, and McGarrett must try to save Eadie from scoring for the last time.
Open episode 2 ↗3. The Second Shot
Air date: 1970-09-30 · 60 min
Dr. Lemira, an opposition leader for Greece, is living in exile in Hawaii, but Klaus Marberg is sent to assassinate him. His plan is to get himself shot and work his way into Dr. Lemira's confidence so he can kill him easily. McGarrett must work out this plot and save the day before it is too late.
Open episode 3 ↗4. Time and Memories
Air date: 1970-10-07 · 60 min
When a lawyer is murdered, his wife becomes the top suspect and McGarrett investigates. However, matters are complicated by the fact that the woman had a relationship with McGarrett, and he jeopardizes his job because of this.
Open episode 4 ↗5. The Guarnerius Caper
Air date: 1970-10-14 · 60 min
Shortly after giving a recital, the violin of a visiting Russian virtuoso is stolen, and McGarrett must retrieve it before the theft turns into an international incident.
Open episode 5 ↗6. The Ransom
Air date: 1970-10-21 · 60 min
Five-O's efforts to rescue a young boy from kidnappers go wrong when Kono is captured and beaten. An angry McGarrett must work out a way to rescue Kono without further endangering him.
Open episode 6 ↗7. Force of Waves
Air date: 1970-10-28 · 60 min
When a ruthless businessman is blown up in a boat explosion, Five-O has many suspects to choose from, and they use psychological methods to determine the guilty party.
Open episode 7 ↗8. The Reunion
Air date: 1970-11-04 · 60 min
A Japanese computer research company executive is recognized by a veteran as his former captor in a Phillippine prison camp in World War II.
Open episode 8 ↗9. The Late John Louisiana
Air date: 1970-11-11 · 60 min
The hitman sent to kill the witness to a two year old murder instead falls in love with her and McGarrett and the team must lead the search to find her before duty overtakes love.
Open episode 9 ↗10. The Last Eden
Air date: 1970-11-18 · 60 min
Five-O search for the criminals who have set up Hawaiian singer and ecologist Jimmy Nuanu as the fall guy for a sewage plant bombing.
Open episode 10 ↗11. Over Fifty? Steal!
Air date: 1970-11-25 · 60 min
McGarrett and company must pit their wits against a veteran thief and robber who leaves Monopoly money at the scene of his crimes.
Open episode 11 ↗12. Beautiful Screamer
Air date: 1970-12-02 · 60 min
Dan Williams's fiancée is murdered by a strangler who writes poetry in lipstick on his victims' legs. Danno resolves to catch the culprit who has other murderous plans to carry out.
Open episode 12 ↗13. The Payoff
Air date: 1970-12-09 · 60 min
McGarrett must apprehend two abductors who are on the run with the proceeds of their crime in order to protect the lives of their co-conspirators.
Open episode 13 ↗14. The Double Wall
Air date: 1970-12-16 · 60 min
When a convicted murderer, Harry Kellem, hears a dying man say he committed the crime that Kellem was jailed for, he takes a doctor hostage and McGarrett must negotiate his way out of the situation.
Open episode 14 ↗15. Paniolo
Air date: 1970-12-30 · 60 min
A cowboy fears the loss of his land to a crooked estate agent and accidentally kills him by hitting him. McGarrett and his team must track the cowboy into the mountains and persuade him to give himself up.
Open episode 15 ↗16. Ten Thousand Diamonds and a Heart
Air date: 1971-01-06 · 60 min
An electronics genius is busted out of prison so he can mastermind a massive robbery of diamonds from the Honolulu Diamond Exchange.
Open episode 16 ↗17. To Kill or Be Killed
Air date: 1971-01-13 · 60 min
Five-O investigates the death of Vietnam hero Jack Rigney, who fell from a balcony. His father is a World War II veteran, but his brother Michael is a peacenik, and Danno goes undercover as a draft dodger to help solve the mystery of Jack's death.
Open episode 17 ↗18. F.O.B. Honolulu (1)
Air date: 1971-01-27 · 60 min
Wo Fat and other top international agents converge on Hawaii to place bids on printing plates for twenty dollar bills, which are in the possession of a former friend of McGarrett.
Open episode 18 ↗19. F.O.B. Honolulu (2)
Air date: 1971-02-03 · 60 min
Five-O must deal with treason, murder and double-crosses in order to solve the case and prevent the U.S. from being flooded by fake currency.
Open episode 19 ↗20. The Gunrunner
Air date: 1971-02-10 · 60 min
The wife of an arms dealer is kidnapped by revolutionaries who want the guns diverted from their original destination, but the arms dealer himself is not as innocent as matters would indicate.
Open episode 20 ↗21. Dear Enemy
Air date: 1971-02-17 · 60 min
The wife of a convicted man fakes evidence in a new crime so that McGarrett will have to re-open her husband's case.
Open episode 21 ↗22. The Bomber and Mrs. Moroney
Air date: 1971-02-24 · 60 min
Danno's past comes back to haunt him when the brother of a young boy he shot is released and wants revenge. The brother takes Chin Ho, Jenny and others hostage in McGarrett's office and threatens to blow them up, and Danno must resolve the tense situation.
Open episode 22 ↗23. The Grandstand Play (1)
Air date: 1971-03-03 · 60 min
A baseball player, Lon Phillips, brings his backward son to Hawaii to escape threats on his life on the mainland.
Open episode 23 ↗24. The Grandstand Play (2)
Air date: 1971-03-10 · 60 min
The son of the baseball player becomes the vital witness in a murder, but he is reluctant to tell either his father or Five-O of the crime.
Open episode 24 ↗