|He Welo 'oihana (Family Business)|
|Season 3, Episode 23|
|Air date||May 13, 2013|
Aloha, Malama Pono
McGarrett must help his mother execute a covert operation to retrieve an incriminating microfiche. Meanwhile, Kono’s life is in danger when she closes in on Adam’s secret.
Chad Torez, a security guard falls into a hole at a construction site and is subsequently shot dead.
Hawaii Five-0 investigate and discover that the various graves in the area contain the decomposed remains of victims who were targets of the notorious Yakuza.
Kono Kalakaua decides to investigate for herself but while investigating a warehouse, she comes across two gunmen who she manages to take down although Kono is shot non-fatally in the process.
With the help of Mick Logan and Lieutenant Commander Wade Gutches, Steve and Doris secretly invade the building Cain owns but both are subsequently caught.
Cain offers a trade, Doris for the microfiche; McGarrett responds by burning the film. However, when they are both released, McGarrett reveals that he burnt a fake microfiche, and has retrieved the real one.
Max later finds a ballistics match to Kono's weapon on several of the murders and informs Steve and Danny Williams of this with the news leaving both men stunned.
|Steve McGarrett||Alex O'Loughlin||Former Navy SEAL and leader of the Hawaii Five-0 Task Force.|
|Danny Williams||Scott Caan||2nd-in-command of the Hawaii Five-0 Task Force and Steve's partner.|
|Chin Ho Kelly||Daniel Dae Kim||Former Detective for HPD and member of Hawaii Five-0 Task Force.|
|Kono Kalakaua||Grace Park||Youngest member Hawaii Five-0 Task Force and Chin's cousin.|
|Dr. Max Bergman||Masi Oka||Chief Medical Examiner for the Hawaii Five-0 team.|
|Catherine Rollins||Michelle Borth||A Navy Lieutenant and Steve McGarrett's on-off girlfriend.|
|Michael Noshimuri||Daniel Henney||Adam's brother.|
|Adam Noshimuri||Ian Anthony Dale||Yakuza's boss Hiro Noshimuri's son, and Kono's secret boyfriend.|
|Grace Williams||Teilor Grubbs||Danny Williams's daughter and first born child.|
|Lieutenant Commander Wade Gutches||David Keith||A Navy SEAL.|
|Doris McGarrett||Christine Lahti||Former CSI agent, and Steve McGarrett's mother|
|Nurse||Sara Naby Kim||An unnamed female nurse.|
|Paramedic||Stephen Meyers||An unnamed male paramedic.|
|Mick Logan||Treat Williams||A Private Investigator.|
|Kamekona||Teila Tuli||An associate of the H50 team, and owner of Wailoa Shave Ice|
|Tyler Cain||Craig T. Nelson||A former CIA agent.|
|La O Na Makuahine ♦ Kanalua ♦ Lana I Ka Moana ♦ Popilikia ♦ Mohai ♦ I Ka Wa Mamua ♦ Ohuna ♦ Wahine'inoloa |
♦ Ha'awe Make Loa ♦ Huaka'I Kula ♦ Kahu ♦ Kapu ♦ Olelo Ho'Opa'I Make ♦ Hana I Wa 'Ia ♦ Hookman ♦ Kekoa ♦ Pa'ani ♦ Na Ki'i ♦ Hoa Pili ♦ Olelo Pa'a ♦ Imi Loko Ka 'Uhane ♦ Ho'opio ♦ He Welo 'oihana ♦ Aloha, Malama Pono