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The Best Episodes of Hawaii Five-0 Season 9

Every episode of Hawaii Five-0 Season 9 ranked from best to worst. Discover the Best Episodes of Hawaii Five-0 Season 9!

Binge this in 17h 55mPeaking at 8.3/10

Steve McGarrett returns home to Oahu, in order to find his father's killer. The governor offers him the chance to run his own task force (Five-0). Steve's team is joined by Chin Ho Kelly, Danny

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Episode Rankings

  1. #1 Fan Favorite
    Hawaii Five-0 Season 9 Episode 1 - Ka ʻowili ʻokaʻi (Cocoon)
    7.7/10(523 votes)

    #1 - Ka ʻowili ʻokaʻi (Cocoon)

    S9:E1

    After Steve’s CIA agent friend is killed, McGarrett lets himself be captured by the group he thinks is responsible and endures a torturous sensory deprivation tank to find the killer. Also, Tani wrestles with whether or not she will tell McGarrett about the murder weapon she found at Adam’s house.

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  2. Hawaii Five-0 Season 9 Episode 2 - Ke kanaka i hāʻule mai ka lewa mai (The Man Who Fell from the Sky)
    7.7/10(442 votes)

    #2 - Ke kanaka i hāʻule mai ka lewa mai (The Man Who Fell from the Sky)

    S9:E2

    When a vacationing dad on a flight to Honolulu is kidnapped and force to parachute mid-flight, Danny, Tani and Junior track him through the jungle to discover that he may not be who he seems. Also, McGarrett is threatened with a secret from his past.

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  3. Hawaii Five-0 Season 9 Episode 3 - Mimiki ke kai, ahuwale ka papa leho (When the Sea Draws Out the Tidal Wave, the Rocks Where the Cowries Hide Are Exposed)
    7.1/10(483 votes)

    #3 - Mimiki ke kai, ahuwale ka papa leho (When the Sea Draws Out the Tidal Wave, the Rocks Where the Cowries Hide Are Exposed)

    S9:E3

    Crime spikes when a heat wave hits Oahu, causing McGarrett and Danny to hunt down a bank thief, and Tani and Junior's car is stolen while they're on duty. Also, Grover plays the golf game of a lifetime, and Kamekona incites a riot by price-gouging on his shave ice.

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  4. Hawaii Five-0 Season 9 Episode 4 - Aʻohe kio pohaku nalo i ke alo pali (On the Slope of the Cliff, Not One Jutting Rock Is Hidden from Sight)
    7.5/10(481 votes)

    #4 - Aʻohe kio pohaku nalo i ke alo pali (On the Slope of the Cliff, Not One Jutting Rock Is Hidden from Sight)

    S9:E4

    Jerry accompanies Junior as he escorts a fallen soldier home to Oahu. Also, McGarrett and Danny discover a dead body when they delve into the illegal and highly profitable black market for sand.

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  5. Hawaii Five-0 Season 9 Episode 5 - Aʻohe mea ʻimi a ka maka (Nothing More the Eyes to Search for)
    7.6/10(477 votes)

    #5 - Aʻohe mea ʻimi a ka maka (Nothing More the Eyes to Search for)

    S9:E5

    On Halloween, Jerry and his friends search his childhood camp for evidence to a murder he witnessed as a boy, while McGarrett investigates a little girl who drew pictures depicting the scene of a recent murder before it was discovered.

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  6. Hawaii Five-0 Season 9 Episode 6 - Aia i Hi‘ikua, i Hi‘ialo (Is Borne on the Back, Is Borne in the Arms)
    7.7/10(457 votes)

    #6 - Aia i Hi‘ikua, i Hi‘ialo (Is Borne on the Back, Is Borne in the Arms)

    S9:E6

    McGarrett crosses the line and is arrested while investigating the death of his former SEAL buddy, who died while making an emergency landing on an aircraft carrier, and the only survivor is a baby. Also, Adam returns to Oahu with some devastating news about his marriage.

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  8. Hawaii Five-0 Season 9 Episode 7 - Pua aʻe la ka uwahi o ka moe (The Smoke Seen in the Dream Now Rises)
    7.2/10(543 votes)

    #7 - Pua aʻe la ka uwahi o ka moe (The Smoke Seen in the Dream Now Rises)

    S9:E7

    McGarrett investigates a cold case from the 1940s, one that his grandfather and the famous Honolulu detective Chang Apana worked on, and he tries to deduce how the case could have been solved. Also, McGarrett and Danny get ready for the opening of their restaurant.

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  9. Hawaii Five-0 Season 9 Episode 8 - Lele pu na manu like (Birds of a Feather)
    7.0/10(519 votes)

    #8 - Lele pu na manu like (Birds of a Feather)

    S9:E8

    Thanksgiving brings Grover’s parents and brother Percy Jr. to Oahu for a visit tainted by sibling rivalry, and Five-0 investigates a thief who is crushed to death by an empty safe.

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  10. Hawaii Five-0 Season 9 Episode 9 - Mai ka po mai ka ʻoiaʻiʻo (Truth Comes from the Night)
    7.6/10(445 votes)

    #9 - Mai ka po mai ka ʻoiaʻiʻo (Truth Comes from the Night)

    S9:E9

    A renowned urban vigilante is killed after making another citizen’s arrest, and Five-0 delves into the world of super heroes and comic books to find the killer. Also, Adam finally gets closer to finding out who killed his sister.

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  11. Hawaii Five-0 Season 9 Episode 10 - Pio ke kukui, poʻele ka hale (When the Light Goes Out, the House Is Dark)
    8.2/10(524 votes)

    #10 - Pio ke kukui, poʻele ka hale (When the Light Goes Out, the House Is Dark)

    S9:E10

    After fighting off an assassin in his own home, McGarrett and Joe White flee to Montana to prepare for a battle against those exacting revenge for a past SEAL mission.

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  12. Hawaii Five-0 Season 9 Episode 11 - Hala i ke ala oʻiʻole Mai (Gone on the Road from Which There Is no Returning)
    7.9/10(499 votes)

    #11 - Hala i ke ala oʻiʻole Mai (Gone on the Road from Which There Is no Returning)

    S9:E11

    Steve and Catherine are still reeling from the murder of one of their ohana and, along with Danny, Junior and some old friends, Harry Langford and Wade Gutches, hunt down the killer. Also, Tani and Grover investigate when a bag of human bones, discovered inside an abandoned storage locker, goes missing.

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  13. Hawaii Five-0 Season 9 Episode 12 - Ka hauli o ka mea hewa ʻole, he nalowale koke (A Bruise Inflicted on an Innocent Person Vanishes Quickly)
    8.1/10(480 votes)

    #12 - Ka hauli o ka mea hewa ʻole, he nalowale koke (A Bruise Inflicted on an Innocent Person Vanishes Quickly)

    S9:E12

    MacGarrett and Five-0 support Danny and Rachel by determining what happened when gets into a life-threatening car accident and lands in critical condition. Also, Tani helps Koa when his rehab patient goes missing.

    Writer:Zoe Robyn

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  14. Hawaii Five-0 Season 9 Episode 13 - Ke iho mai nei ko luna (Those Above Are Descending)
    7.5/10(459 votes)

    #13 - Ke iho mai nei ko luna (Those Above Are Descending)

    S9:E13

    Adam, Junior and Tani travel to the bottom of the Pacific Ocean when a murder takes place in a remote underwater lab, and the killer may still be on board

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  15. Hawaii Five-0 Season 9 Episode 14 - Ikiiki i ka la o Keawalua (Depressed with the Heat of Kealwalua)
    6.7/10(596 votes)

    #14 - Ikiiki i ka la o Keawalua (Depressed with the Heat of Kealwalua)

    S9:E14

    While investigating Flippa’s friend’s murder, McGarrett and Grover uncover a deadly plan by an extremist group on the Island. Also, Grover has an emotional reaction to the case.

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  16. Hawaii Five-0 Season 9 Episode 15 - Hoʻopio ʻia e ka noho aliʻi a ka ua (Made Prisoner by the Reign of the Rain)
    8.0/10(442 votes)

    #15 - Hoʻopio ʻia e ka noho aliʻi a ka ua (Made Prisoner by the Reign of the Rain)

    S9:E15

    As a dangerous hurricane hits Oahu, Five-0 is tasked with protecting El Diablo, a captured serial killer who is being hunted by an assassin. Also, Tani's civilian safety check during the storm turns deadly and Rachel and Charlie evacuate to Danny's house, where the ex-spouses reminisce.

    Director:Karen Gaviola

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  17. Hawaii Five-0 Season 9 Episode 16 - Hapai ke kuko, hanau ka hewa (When Covetousness is Conceived, Sin is Born)
    7.7/10(445 votes)

    #16 - Hapai ke kuko, hanau ka hewa (When Covetousness is Conceived, Sin is Born)

    S9:E16

    When the top salesperson for a beauty company/pyramid scheme is murdered, Five-0 sifts through a long list of possible suspects who would want her dead. Also, Adam befriends a homeless man estranged from his family.

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  18. Hawaii Five-0 Season 9 Episode 17 - Eʻao luʻau a kualima (Offer Young Taro Leaves To)
    7.7/10(447 votes)

    #17 - Eʻao luʻau a kualima (Offer Young Taro Leaves To)

    S9:E17

    Junior is torn between his duties as a member of Five-0 and his feelings for his former girlfriend when her new love, the father of her son, is one of the culprits in a bank-heist-turned-homicide.

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  19. Hawaii Five-0 Season 9 Episode 18 - Ai no i ka ʻape he maneʻo no ko ka nuku (He Who Eats 'ape is Bound to Have His Mouth Itch)
    7.6/10(423 votes)

    #18 - Ai no i ka ʻape he maneʻo no ko ka nuku (He Who Eats 'ape is Bound to Have His Mouth Itch)

    S9:E18

    Tani and Junior go undercover at a gym to track down a deadly batch of steroids that’s killing users, before the drugs claim any more victims. Also, Danny and MacGarrett sub as bodyguards for Danny’s high maintenance ex-mother-in-law, Amanda Savage, a wildly famous romance novelist with whom he has never gotten along.

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  20. Hawaii Five-0 Season 9 Episode 19 - Pupuhi ka heʻe o kai uli (The Octopus of the Deep Spews Its Ink)
    7.5/10(401 votes)

    #19 - Pupuhi ka heʻe o kai uli (The Octopus of the Deep Spews Its Ink)

    S9:E19

    Five-0 investigate the murder of a window washer and find that the victim is actually a renowned street artist who may have a politically motivated bounty on his head. Also, Grover and Adam look into the murder of a gambler, and Junior helps his father when they are reminded of his sister’s death.

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  21. Hawaii Five-0 Season 9 Episode 20 - Ke ala o ka pu (Way of the Gun)
    7.9/10(442 votes)

    #20 - Ke ala o ka pu (Way of the Gun)

    S9:E20

    Five-0 must locate a teen girl who purchased a gun from a junkie, and discover that the firearm, over the course of decades, has affected all of their lives.

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  22. Hawaii Five-0 Season 9 Episode 21 - He kama na ka pueo (Offspring of an Owl)
    7.6/10(394 votes)

    #21 - He kama na ka pueo (Offspring of an Owl)

    S9:E21

    Five-0 investigates the murder of a man whose body may hold the key to a 20-year-old case involving a kidnapped girl whose father never stopped looking for her.

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  23. Hawaii Five-0 Season 9 Episode 22 - O ke kumu, o ka mana, hoʻopuka ʻia (The Teacher, The Pupil - Let It Come Forth)
    7.5/10(394 votes)

    #22 - O ke kumu, o ka mana, hoʻopuka ʻia (The Teacher, The Pupil - Let It Come Forth)

    S9:E22

    While Adam investigates the murder of an undercover FBI agent about to wed the daughter of a Yakuza leader, Noelani is held hostage and forced, along with her mentor Dr. Chu, to operate at gunpoint on a criminal.

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  24. Hawaii Five-0 Season 9 Episode 23 - Hoʻokahi no la o ka malihini (A Stranger Only for a Day)
    7.8/10(401 votes)

    #23 - Hoʻokahi no la o ka malihini (A Stranger Only for a Day)

    S9:E23

    While McGarrett helps his visiting sister, Mary, spy on her shady neighbors, Five-0 investigates the murders of a ride-share driver and his passenger. Also, the team teases the youngest members of Five-0 when Junior escorts Tani to a wedding.

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  25. Hawaii Five-0 Season 9 Episode 24 - Hewa ka lima (The Hand Is at Fault)
    8.0/10(383 votes)

    #24 - Hewa ka lima (The Hand Is at Fault)

    S9:E24

    Fugitive hacker Aaron Wright resurfaces to ask Five-0 for help when his co-workers at the NSA, which he has been working for, are all murdered. Also, Junior speaks at the parole hearing of the drunk driver who killed his sister.

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  26. Hawaii Five-0 Season 9 Episode 25 - Hana Mao ʻole ka ua o Waianae (Endlessly Pours the Rain of Waianae)
    8.3/10(427 votes)

    #25 - Hana Mao ʻole ka ua o Waianae (Endlessly Pours the Rain of Waianae)

    S9:E25

    Five-0 continues to hunt down escaped criminal Aaron Wright before he can sell cyber-weapons to the highest bidder. Also, the lives of McGarrett and the team are put in danger when a visitor comes to headquarters to make amends.

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Season 9 Ratings Summary

"Ka ʻowili ʻokaʻi (Cocoon)" is the best rated episode of "Hawaii Five-0" season 9. It scored 7.7/10 based on 523 votes. Directed by Bryan Spicer and written by Peter M. Lenkov, Leonard Freeman, it aired on 9/28/2018. This episode is rated 0.0 points higher than the second-best, "Ke kanaka i hāʻule mai ka lewa mai (The Man Who Fell from the Sky)".