S10E15: He waha kou o ka heʻe (Yours is the Mouth of an Octopus)
When Grover's niece, Siobhan goes missing from the police academy and it's discovered her boyfriend is an undercover member of the Yakuza, Adam may be her only hope of rescue.
Previous Episode 
Season 1
Pilot
S1E1 / 20 Sep 2010
Ohana (Family)
S1E2 / 27 Sep 2010
Malama Ka Aina (Respect the Land)
S1E3 / 04 Oct 2010
Lanakila (Victory)
S1E4 / 11 Oct 2010
Nalowale (Forgotten/Missing)
S1E5 / 18 Oct 2010
Ko‘olauloa (North Shore of Oʻahu)
S1E6 / 25 Oct 2010
Ho‘apono (Accept)
S1E7 / 01 Nov 2010
Mana‘o (Belief)
S1E8 / 08 Nov 2010
Po‘ipu (The Siege)
S1E9 / 15 Nov 2010
Heihei (Race)
S1E10 / 22 Nov 2010
Palekaiko (Paradise)
S1E11 / 06 Dec 2010
Hana ‘a‘a Makehewa (Desperate Measures)
S1E12 / 13 Dec 2010
Ke Kinohi (The Beginning)
S1E13 / 03 Jan 2011
He Kane Hewa ‘Ole (An Innocent Man)
S1E14 / 17 Jan 2011
Kai e‘e (Tidal Wave)
S1E15 / 23 Jan 2011
E Malama (To Protect)
S1E16 / 07 Feb 2011
Powa Maka Moana (Pirate)
S1E17 / 14 Feb 2011
Loa Aloha (The Long Goodbye)
S1E18 / 21 Feb 2011
Ne Me‘e Laua Na Paio (Heroes and Villains)
S1E19 / 21 Mar 2011
Ma Ke Kahakai (Shore)
S1E20 / 11 Apr 2011
Ho‘opa‘i (Vengeance)
S1E21 / 18 Apr 2011
Ho‘ohuli Na‘au (Close to Heart)
S1E22 / 02 May 2011
Ua Hiki Mai Kapalena Pau (Until the End is Near)
S1E23 / 09 May 2011
Oia‘i‘o (Trust)
S1E24 / 16 May 2011
Season 2
Ha‘i‘ole (Unbreakable)
S2E1 / 19 Sep 2011
Ua Lawe Wale (Taken)
S2E2 / 26 Sep 2011
Kame‘e (The Hero)
S2E3 / 03 Oct 2011
Mea Makamae (Treasure)
S2E4 / 10 Oct 2011
Ma‘ema‘e (Clean)
S2E5 / 17 Oct 2011
Ka Hakaka Maika‘i (The Good Fight)
S2E6 / 24 Oct 2011
Ka Iwi Kapu (Sacred Bones)
S2E7 / 31 Oct 2011
Lapa‘au (Healing)
S2E8 / 07 Nov 2011
Ike Maka (Identity)
S2E9 / 14 Nov 2011
Ki‘ilua (Deceiver)
S2E10 / 21 Nov 2011
Pahele (Trapped)
S2E11 / 05 Dec 2011
Alaheo Pau‘ole (Gone Forever)
S2E12 / 12 Dec 2011
Ka Ho‘oponopono (The Fix)
S2E13 / 02 Jan 2012
Pu‘olo (The Package)
S2E14 / 16 Jan 2012
Mai Ka Wa Kahiko (Out of the Past)
S2E15 / 06 Feb 2012
I Helu Pu (The Reckoning)
S2E16 / 13 Feb 2012
Kupale (Defender)
S2E17 / 20 Feb 2012
Lekio (Radio)
S2E18 / 27 Feb 2012
Kalele (Faith)
S2E19 / 19 Mar 2012
Ha‘alele (Abandoned)
S2E20 / 09 Apr 2012
Pa Make Loa (Touch of Death) (I)
S2E21 / 30 Apr 2012
Ua Hopu (Caught)
S2E22 / 07 May 2012
Ua Hala (Death in the Family)
S2E23 / 14 May 2012
Season 3
La O Na Makuahine (Mother's Day)
S3E1 / 24 Sep 2012
Kanalua (Doubt)
S3E2 / 01 Oct 2012
Lana I Ka Moana (Adrift)
S3E3 / 08 Oct 2012
Popilikia (Misfortune)
S3E4 / 15 Oct 2012
Mohai (Offering)
S3E5 / 05 Nov 2012
I Ka Wa Mamua (In a Time Past)
S3E6 / 12 Nov 2012
Ohuna (The Secret)
S3E7 / 19 Nov 2012
Wahine‘inoloa (Evil Woman)
S3E8 / 26 Nov 2012
Ha‘awe Make Loa (Death Wish)
S3E9 / 03 Dec 2012
Huaka‘i Kula (Field Trip)
S3E10 / 10 Dec 2012
Kahu (Guardian)
S3E11 / 17 Dec 2012
Kapu (Forbidden)
S3E12 / 14 Jan 2013
Olelo Ho‘opa‘i Make (Death Sentence)
S3E13 / 20 Jan 2013
Hana I Wa ‘Ia (Scandal)
S3E14 / 21 Jan 2013
Hookman
S3E15 / 04 Feb 2013
Kekoa (Warrior)
S3E16 / 11 Feb 2013
Pa‘ani (The Game)
S3E17 / 18 Feb 2013
Na Ki‘i (Dolls)
S3E18 / 18 Mar 2013
Hoa Pili (Close Friends)
S3E19 / 25 Mar 2013
Olelo Pa‘a (The Promise)
S3E20 / 15 Apr 2013
Imi Loko Ka ‘Uhane (Seek Within One's Soul)
S3E21 / 29 Apr 2013
Ho‘opio (To Take Captive)
S3E22 / 06 May 2013
He Welo ‘Oihana (Family Business)
S3E23 / 13 May 2013
Aloha. Malama Pono (Farewell & Take Care)
S3E24 / 20 May 2013
Season 4
Aloha Ke Kahi I Ke Kahi (We Need Each Another)
S4E1 / 27 Sep 2013
A‘ale Ma‘a Wau (Fish Out of Water)
S4E2 / 04 Oct 2013
Ka ʻoiaʻiʻo ma loko (The Truth Within)
S4E3 / 11 Oct 2013
A Ia La Aku (From This Day Forward)
S4E4 / 18 Oct 2013
Kupu‘eu (Fallen Hero)
S4E5 / 25 Oct 2013
Kupouli ‘La (Broken)
S4E6 / 01 Nov 2013
Ua Nalohia (In Deep)
S4E7 / 08 Nov 2013
Akanahe (Reluctant Partners)
S4E8 / 15 Nov 2013
Hau‘oli La Ho‘omaika‘i (Happy Thanksgiving)
S4E9 / 22 Nov 2013
Ho‘onani Makuakane (Honor Thy Father)
S4E10 / 13 Dec 2013
Pukana (Keepsake)
S4E11 / 20 Dec 2013
O Kela Me Keia Manawa (Now and Then)
S4E12 / 10 Jan 2014
Hana Lokomaika‘i (The Favor)
S4E13 / 17 Jan 2014
Na hala a ka makua (Sins of the Father)
S4E14 / 31 Jan 2014
Pale'la (Buried Secrets)
S4E15 / 28 Feb 2014
Hoku Welowelo (Fire in the Sky)
S4E16 / 07 Mar 2014
Ma Lalo o ka ʻlli (Beneath the Surface)
S4E17 / 14 Mar 2014
Ho‘i Hou (Reunited)
S4E18 / 04 Apr 2014
Ku I Ka Pili Koko (Blood Brothers)
S4E19 / 11 Apr 2014
Pe‘epe‘e Kānaka (Those Among Us)
S4E20 / 25 Apr 2014
Makani ʻOlu a Holo Malie (Fair Winds and Following Seas)
S4E21 / 02 May 2014
O ka Pili ‘Ohana Ka ‘Oi (Family Comes First)
S4E22 / 09 May 2014
Season 5
Aʻohe kahi e peʻe ai (Nowhere to Hide)
S5E1 / 26 Sep 2014
Ka Makuakāne (Family Man)
S5E2 / 03 Oct 2014
Kanalu Hope Loa (The Last Break)
S5E3 / 10 Oct 2014
Ka Noʻeau (The Painter)
S5E4 / 17 Oct 2014
Hoʻoilina (Legacy)
S5E5 / 24 Oct 2014
Hoʻomāʻike (Unmasked)
S5E6 / 31 Oct 2014
Inā Paha (If Perhaps)
S5E7 / 07 Nov 2014
Ka Hana Malū (Inside Job)
S5E8 / 21 Nov 2014
Ke Koho Mamao Aku (Longshot)
S5E9 / 12 Dec 2014
Wāwahi moeʻuhane (Broken Dreams)
S5E10 / 02 Jan 2015
Ua ʻaihue (Stolen)
S5E11 / 09 Jan 2015
Poina ‘Ole (Not Forgotten)
S5E12 / 16 Jan 2015
Lā Pōʻino (Doomsday)
S5E13 / 30 Jan 2015
Powehiwehi (Blackout)
S5E14 / 06 Feb 2015
E ʻImi Pono (Searching for the Truth)
S5E15 / 13 Feb 2015
Nānahu (Embers)
S5E16 / 20 Feb 2015
Kukaʻawale (Stakeout)
S5E17 / 27 Feb 2015
Pono Kaulike (Justice For All)
S5E18 / 06 Mar 2015
Kahania (Close Shave)
S5E19 / 13 Mar 2015
Ike Hānau (Instinct)
S5E20 / 03 Apr 2015
Ua heleleʻi ka hoku (Fallen Star)
S5E21 / 10 Apr 2015
Ho’amoano (Chasing Yesterday)
S5E22 / 24 Apr 2015
Moʻo ʻolelo Pu (Sharing Traditions)
S5E23 / 01 May 2015
Luapoʻi (Prey)
S5E24 / 08 May 2015
A Make Kaua (Until We Die)
S5E25 / 08 May 2015
Season 6
Mai hoʻoni i ka wai lana mālie (Do Not Disturb the Water that is Tranquil)
S6E1 / 25 Sep 2015
Lehu a Lehu (Ashes to Ashes)
S6E2 / 02 Oct 2015
Ua ʻoʻoloku ke anu i na mauna (The Chilling Storm Is on the Mountain)
S6E3 / 09 Oct 2015
Ka Papahana Holo Pono (Best Laid Plans)
S6E4 / 16 Oct 2015
Ka ʻalapahi nui (Big Lie)
S6E5 / 23 Oct 2015
Na Pilikua Nui (Monsters)
S6E6 / 30 Oct 2015
Na Kama Hele (Day Trippers)
S6E7 / 06 Nov 2015
Piko Pau ʻiole (The Artful Dodger)
S6E8 / 13 Nov 2015
Hana Keaka (Charade)
S6E9 / 20 Nov 2015
Ka Makau Kaa Kaua (The Sweet Science)
S6E10 / 11 Dec 2015
Kuleana (One's Personal Sense of Responsibility)
S6E11 / 08 Jan 2016
Ua Ola Loko I Ke Aloha (Love Gives Life Within)
S6E12 / 15 Jan 2016
Umia Ka Hanu (Hold the Breath)
S6E13 / 22 Jan 2016
Hoa ʻinea (Misery Loves Company)
S6E14 / 12 Feb 2016
Ke Koa Lokomaikaʻi (The Good Soldier)
S6E15 / 19 Feb 2016
Ka Pohaku Kihi Paʻa (The Solid Cornerstone)
S6E16 / 26 Feb 2016
Waiwai (Assets)
S6E17 / 11 Mar 2016
Kanaka Hahai (The Hunter)
S6E18 / 01 Apr 2016
Malama Ka Poʻe (Care For One's People)
S6E19 / 08 Apr 2016
Ka Haunaele (Rampage)
S6E20 / 15 Apr 2016
Ka Pono Kuʻokoʻa (The Cost of Freedom)
S6E21 / 22 Apr 2016
I ʻika Ka Ao (For the World to Know)
S6E22 / 29 Apr 2016
Pilina Koko (Blood Ties)
S6E23 / 06 May 2016
O ke ali’I wale no ka’u makemake (My Desire Is Only For The Chief)
S6E25 / 13 May 2016
Season 7
Makaukau ʻoe e Paʻani? (Ready to Play?)
S7E1 / 23 Sep 2016
No ke aliʻi wahine a me ka ʻaina (For Queen and Country)
S7E2 / 30 Sep 2016
He Moho Hou (New Player)
S7E3 / 07 Oct 2016
Hu aʻe ke ahi lanakila a Kamaile (The Fire of Kamile Rises in Triumph)
S7E4 / 14 Oct 2016
Ke Kū ‘Ana (The Stand)
S7E5 / 21 Oct 2016
Ka hale hoʻokauweli (House of Horrors)
S7E6 / 28 Oct 2016
Ka makuahine a me ke keikikane (Mother and Son)
S7E7 / 04 Nov 2016
Hana Komo Pae (Right of Passage)
S7E8 / 11 Nov 2016
Elua la ma Nowemapa (Two Days in November)
S7E9 / 18 Nov 2016
Ka Luhi (The Burden)
S7E10 / 09 Dec 2016
Kaʻili aku (Snatchback)
S7E11 / 16 Dec 2016
Ka ʻaelike (The Deal)
S7E12 / 06 Jan 2017
Ua hoʻi ka ʻopua i Awalua (The Clouds Always Return to Alawua)
S7E13 / 13 Jan 2017
Ka laina ma ke one (Line in the Sand)
S7E14 / 20 Jan 2017
Ka Paʻani Nui (Big Game)
S7E15 / 03 Feb 2017
Poniu I Ke Aloha (Crazy in Love)
S7E16 / 10 Feb 2017
Hahai i nā pilikua nui (Hunting Monsters)
S7E17 / 17 Feb 2017
E malama pono (Handle with Care)
S7E18 / 24 Feb 2017
Puka ʻana (Exodus)
S7E19 / 10 Mar 2017
Huikau na makau a na lawaiʻa (The Fishhooks of the Fishers Become Entangled)
S7E20 / 31 Mar 2017
Ua maloʻo ka wai (The Water Is Dried Up)
S7E21 / 07 Apr 2017
Waimaka ʻeleʻele (Black Tears)
S7E22 / 14 Apr 2017
Wehe ʻana (Prelude)
S7E23 / 28 Apr 2017
He keʻu na ka ʻalae a Hina (A Croaking By Hina's Mudhen)
S7E24 / 05 May 2017
Season 8
Nā lā ʻīlio (Dog Days)
S8E2 / 06 Oct 2017
Kamaʻomaʻo, ka ‘aina huli hana (The Land of Activities)
S8E5 / 03 Nov 2017
Kau ka ʻonohi aliʻi i luna (The Royal Eyes Rest Above)
S8E7 / 17 Nov 2017
Make me kai (Death at Sea)
S8E9 / 08 Dec 2017
I ka wa ma mua, I ka wa ma hope (The Future Is in the Past)
S8E10 / 15 Dec 2017
Oni kalalea ke ku a ka laʻau loa (A Tall Tree Stands Above the Others)
S8E11 / 15 Dec 2017
Ka hopu nui ʻana (The Round Up)
S8E12 / 05 Jan 2018
O ka mea ua hala, ua hala ia (What Is Gone Is Gone)
S8E13 / 12 Jan 2018
Nā keiki a Kalaihaohia (The Children of Kalaihoahia)
S8E14 / 19 Jan 2018
He pukoʻa kani ʻaaina (A Coral Reef Strengthens Out Into Land)
S8E15 / 02 Feb 2018
Hōlapu ke ahi, koe iho ka lehu (The Fire Blazed Up, Then Only Ashes Were Left)
S8E17 / 09 Mar 2018
E hoʻokō kuleana (To Do One's Duty)
S8E18 / 30 Mar 2018
He lokomaikaʻi ka manu o Kaiona (Kind Is the Bird of Kaiona)
S8E20 / 13 Apr 2018
Ahuwale ka nane huna (The Answer to the Riddle Is Seen)
S8E21 / 20 Apr 2018
Ka Hana a ka makua, o ka hana no ia a keiki (What Parents Do, Children Will Do)
S8E23 / 04 May 2018
Waiho wale kahiko (Ancients Exposed)
S8E25 / 18 May 2018
Season 9
Ka ʻowili ʻokaʻi (Cocoon)
S9E1 / 28 Sep 2018
Ke kanaka i hāʻule mai ka lewa mai (The Man Who Fell from the Sky)
S9E2 / 05 Oct 2018
Aʻohe mea ʻimi a ka maka (Nothing More the Eyes to Search for)
S9E5 / 26 Oct 2018
Aia i Hi‘ikua, i Hi‘ialo (Is Borne on the Back, Is Borne in the Arms)
S9E6 / 02 Nov 2018
Pua aʻe la ka uwahi o ka moe (The Smoke Seen in the Dream Now Rises)
S9E7 / 09 Nov 2018
Lele pu na manu like (Birds of a Feather)
S9E8 / 16 Nov 2018
Mai ka po mai ka ʻoiaʻiʻo (Truth Comes from the Night)
S9E9 / 30 Nov 2018
Pio ke kukui, poʻele ka hale (When the Light Goes Out, the House Is Dark)
S9E10 / 07 Dec 2018
Hala i ke ala oʻiʻole Mai (Gone on the Road from Which There Is no Returning)
S9E11 / 04 Jan 2019
Ke iho mai nei ko luna (Those Above Are Descending)
S9E13 / 18 Jan 2019
Ikiiki i ka la o Keawalua (Depressed with the Heat of Kealwalua)
S9E14 / 01 Feb 2019
Hoʻopio ʻia e ka noho aliʻi a ka ua (Made Prisoner by the Reign of the Rain)
S9E15 / 15 Feb 2019
Hapai ke kuko, hanau ka hewa (When Covetousness is Conceived, Sin is Born)
S9E16 / 22 Feb 2019
Eʻao luʻau a kualima (Offer Young Taro Leaves To)
S9E17 / 22 Feb 2019
Pupuhi ka heʻe o kai uli (The Octopus of the Deep Spews Its Ink)
S9E19 / 15 Mar 2019
Ke ala o ka pu (Way of the Gun)
S9E20 / 05 Apr 2019
He kama na ka pueo (Offspring of an Owl)
S9E21 / 12 Apr 2019
O ke kumu, o ka mana, hoʻopuka ʻia (The Teacher, The Pupil - Let It Come Forth)
S9E22 / 26 Apr 2019
Hoʻokahi no la o ka malihini (A Stranger Only for a Day)
S9E23 / 03 May 2019
Hewa ka lima (The Hand Is at Fault)
S9E24 / 10 May 2019
Hana Mao ʻole ka ua o Waianae (Endlessly Pours the Rain of Waianae)
S9E25 / 17 May 2019
Season 10
Kuipeia e ka makani apaa (Knocked Flat By the Wind; Sudden Disaster)
S10E2 / 04 Oct 2019
E uhi ana ka wa i hala i na mea i hala (Passing Time Obscures the Past)
S10E3 / 11 Oct 2019
Ka ʻiʻo (DNA)
S10E7 / 08 Nov 2019
Ka laäʻau kumu ʻole o Kahilikolo (The Trunkless Tree of Kahilikolo)
S10E9 / 22 Nov 2019
O ʻoe, a ʻowau, nalo ia mea (You and Me, It is Hidden)
S10E10 / 06 Dec 2019
Ka i ka ʻino, no ka ʻino (To Return Evil for Evil)
S10E11 / 13 Dec 2019
Ihea ʻoe i ka wa a ka ua e loku ana (Where Were You When the Rain Was Pouring?) (I)
S10E12 / 03 Jan 2020
Loa’a pono ka ‘iole i ka punana (The Rat Was Caught Right in the Nest)
S10E13 / 10 Jan 2020
He waha kou o ka heʻe (Yours is the Mouth of an Octopus)
S10E15 / 07 Feb 2020
He kauwa ke kanaka na ke aloha (Man is a Slave of Love)
S10E16 / 14 Feb 2020
Nalowale i ke ʻehu o he kai (Lost in the Sea Sprays)
S10E18 / 28 Feb 2020
E hoʻi na keiki oki uaua o na pali (Home Go The Very Tough Lads of The Hills)
S10E19 / 06 Mar 2020
He puheʻe miki (A Gripping Cuttlefish)
S10E20 / 13 Mar 2020
Aloha (Goodbye)
S10E22 / 03 Apr 2020
Alex O'Loughlin
Steve McGarrett
Scott Caan
Danny 'Danno' Williams
Ian Anthony Dale
Adam Noshimuri
Meaghan Rath
Tani Rey
Beulah Koale
Junior Reigns
Kimee Balmilero
Noelani Cunha
