Watch Hawaii Five-0 Season 8 full episodes online, free and paid options via our partners and affiliates.

A Russian Submarine - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 25
"Waiho wale kahiko (Ancients Exposed)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 25, Five-0 discovers a Russian spy ring when a Russian nuclear attack submarine appears off the coast of Waikiki.

A High Risk Mission - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 24
"Ka Lala Kaukonakona Haki 'Ole I Ka Pa A Ka Makani Kona (The Tough Branch That Does Not Break in the Kona Gale)"
Original Air Date:

On Hawaii Five-0 Season 8 Epiode 24, McGarrett joins Junior's SEAL Team on a high risk mission to capture an elusive target who is holding Joe White hostage.

Witness On the Run - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 23
"Ka Hana A Ka Makua, O Ka Hana No Ia A Keiki (What Parents Will Do, Children Will Do)"
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On Hawaii Five-0 Season 8 Episode 23, the team take on the mob when a former boss is killed and Junior's friend Cammy Lin runs after witnessing the hit.

Duke Needs Help - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 22
"Kopi Wale No I Ka I'a A 'Eu No Ka Ilo (Though the Fish is Well Salted, The Maggots Crawl)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 22, Five-0 helps Duke when he is forced to steal evidence from the police locker in exchange for his kidnapped granddaughter.

Harry Langford Needs Help - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 21
"Ahuwale ka nane huna (The Answer to the Riddle is Seen)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 21, when a teenage British royal runs away while under his protection, Harry Langford enlists McGarrett and Danny's help.

An Abandoned Island - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 20
"He Lokomaika'i Ka Manu O Kaiona (Kind Is The Bird of Kaiona)"
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On Hawaii Five-0 Season 8 Episode 20, Catherine recruits McGarrett and Jerry to track down a uranium deposit thought to be hidden on an abandoned island.

Where The Bodies Are Buried - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 19
"Aohe mea make i ka hewa; make no i ka mihi ole (No one has ever died for the mistakes he has made only because he didn't repent)"
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On Hawaii Five-0 Season 8 Episode 19, Jessie makes a decision that could ruin Adam's life, while a hitman confesses admits to where he buried his victims.

Danny Saved a Life - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 18
"E Ho'oko Kuleana (To Do One's Duty)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 18, the ex-wife of the man who shot Danny comes to Oahu and reveals how Danny's protection helped save her life.

Things Go Sideways - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 17
"Holapu Ke Ahi, Koe Iho Ka Lehu (The Fire Blazed Up, Then Only Ashes Were Left)"
Original Air Date:

On Hawaii Five-0 Season 6 Episode 17, Adam's mission to take down organized crime goes sideways when deadly chlorine gas falls into the wrong hands.

Tani Goes Undercover - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 16
"O nā hōkū o ka lani wale no kai 'ike i kahi o Pae (Only the Stars of Heaven Know Where Pae Is)"
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On Hawaii Five-0 Season 8 Episode 16, Tani and Junior go undercover as prospective parents in order to infiltrate a private school whose headmaster is murdered.

Murder Of a Private Detective - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 15
"He Puko'a Kani 'aina (A Coral Reef Strengthens Out Into Land)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 15, McGarrett and Danny investigate the murder of a private detective whose client was killed in the same way.

Adam's New Confidential Informant - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 14
"Nā keiki a Kalaihaohia"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 14, Five-0 investigates when the corpse of a diamond smuggler is stolen, while Adam recruits a new confidential informant.

Grover's Revelation - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 13
"O Ka Mea Ua Hala, Ua Hala Ia (What Is Gone Is Gone)"
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On Hawaii Five-0 Season 8 Episode 13, Grover reveals how he was once on the brink of killing himself, when a man accused of killing his wife attempts suicide.

Cracking Down - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 12
"Ka Hopu Nui 'Ana (The Round Up)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 12, McGarrett tasks Adam with forming a new division within Five-0 to take on organized crime when an FBI agent is killed.

A Christmas Story - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 11
"'Oni kalalea ke ku a ka la'au loa (A Tall Tree Stands Above the Others)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 11, on Christmas Eve and Danny tells Charlie a story about a recent Five-0 case involving bad Santas and a holiday miracle.

Imagining the Future - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 10
"I ka wa ma mua, I ka wa ma hope. (The Future Is in the Past)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 10, Danny is shot and left clinging to life while quarantined in the hospital with McGarrett, Tani and Junior.

A Deadly BioWeapon - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 9
"Make me kai (Death at Sea)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 9, McGarrett, Danny, Tani and Junior are all exposed to a deadly bioweapon while checking on a deserted yacht adrift at sea.

Posing As a Pilot - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 8
"He Kaha Lu'u Ke Ala, Mai Ho'okolo Aku (The Trail Leads to a Diving Place; Do Not Follow After)"
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On Hawaii Five-0 Season 8 Episode 8, after a pilot dies in an air race, McGarrett poses as a pilot to investigate the cause of the plane crash.

Junior Backs Up McGarrett - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 7
"Kau Ka 'Onohi Ali'i I Luna (The Royal Eyes Rest Above)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 7, Adam and Junior back up McGarrett during a bank heist in which forces Steve to make a potentially heartbreaking mistake.

Multiple Personalities - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 6
"Mohala I Ka Wai Ka Maka O Ka Pua (Unfolded By the Water Are the Faces of the Flowers)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 6, the Five-0 investigations into the murder of two tourists leads to a man suffering from multiple personality disorder.

Hawaiian Folklore - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 5
"Kama' Oma 'O, Ka 'Aina Huli Hana (At Kama'oma'o, The Land of Activities)"
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On Hawaii Five-0 Season 8 Episode 5, the Five-0 team investigates a string of murders that mirror old stories from well-known Hawaiian folklore.

Lives On the Line - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 4
"E Uhi Wale No 'A'Ole E Nalo, He Imu Puhi (No Matter How Much One Covers a Steaming Imu, the Smoke Will Rise)"
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On Hawaii Five-0 Season 8 Episode 4, when the HPD system is hacked the lives of Five-0's informants are put in danger and one person ends up dead.

An Old Friend - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 3
"Kau Pahi, Ko'u Kua. Kau Pu, Ko'u Po'o (Your Knife, My Back. My Gun, Your Head)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 3, when the boss of a major crime family is murdered, the team enlists the help of an old friend to stop revenge killings.

Police Dog - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 2
"Na La 'Ilio (Dog Days)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 2, Five-0 works with an injured police dog, the only witness to a drug bust, and Junior Reigns looks to join the task force.

Tani Rey - Hawaii Five-0
Watch Hawaii Five-0 Season 8 Episode 1
"A'ole E 'Olelo Mai Ana Ke Ahi Ua Ana Ia (Fire WIll Never Say That It Has Had Enough)"
Original Air Date:

On Hawaii Five-0 Season 8 Episode 1, when hacker Aaron Wright releases an arsonist from prison, McGarrett and Danny recruit Tani Rey to join the task force.

Hawaii Five-0 Season 8 Quotes

McGarrett: Steve's is your dream. It's not Steve's.
Danny: You don't think it'd be fun?

They were right to kick me out. I shouldn't be a cop.

Tani [to McGarrett and Danny]