When a local deep sea diver is murdered, Five-0 heads out into the ocean to find the killer.
Blake Spencer, a diver is found dead at sea and Hawaii Five-0 discover that he'd discovered treasure from a sunken galleon off the Oahu coast with Lieutenant Commander Steve McGarrett and Detective Danny Williams learning that the treasure is fake.
When they discover Spencer's boat, Steve and Joe White drive, finding an ambulance that sank in 1939 which houses the remains of Spencer's grandfather and Sylvia Spencer's father, Robert S. Murphy with Spencer wanting to do that so that he could give his mother who is suffering from Alzheimer's disease closure.
The team soon learn that the murderer is Jimmy Koller who worked with Blake and who killed Blake, believing that Blake wanted for the treasure for himself with Koller believing that the story that Blake told him about his grandfather being in the sea to be nothing more than a lie although Lori corrects Koller on that.
Meanwhile, Chin realizes that Kono logged onto the HPD Database using his password while Steve realizes White did not release the video with Wo Fat and his father to the Department of Defense with White claiming he was trying to protect John.
- Alex O'Loughlin as Lieutenant Commander Steve McGarrett
- Scott Caan as Detective Danny Williams
- Daniel Dae Kim as Lieutenant Chin Ho Kelly
- Grace Park as Kono Kalakaua
- Masi Oka as Dr. Max Bergman
Special guest star
- Patty Duke as Sylvia Spencer
- Lauren German as Officer Lori Weston
- Peter Fonda
- Autumn Reeser
- William Baldwin as Frank Delano
- Taylor Wily as Kamekona Tupuola
- Michelle Borth as Lieutenant Catherine Rollins
- Terry O'Quinn as Joe White
- Brian Yang as Charlie Fong
- Don Stroud as Ed
- Billy Ray Gallion as Ray Mapes
- Ari Dalbert as Aaron
- Brian Guest as Jimmy Koller
- Mckenzie Milan as Elizabeth
- Allen Cole as Remo Julian
- Dr. Tom Holland as Dr. Tallridge
- Jr. Coleman as Bar Fly
- Kamekona Tupuola introduces his new Shrimp Truck.
- Episode occurs around a month after Chin Ho gets his HPD badge back.
Dr. Max Bergman: We're dealing with a wet body, so after 24 hours of submersion, the skin separates from the dermis. Try to roll a print and you only get a black smudge. But the outer layer of the skin actually maintains its ridging. All you need is an extra set of hands and you're in business.
Steve McGarrett: You're putting the guy's hand like it's a glove. Max, that's disgusting.
Dr. Max Bergman: Yes, but very effective.
Danny Williams: It's amazing. I mean, one day you are the king of the ocean, right? The next thing you know, you' hanging from the ceiling in a museum and children are looking at your private parts.
Steve McGarrett: Yep, kind of puts things in perspective.
Danny Williams: I left her a coin because she might be able to help with our investigation.
Steve McGarrett: Really? You know what you should do? You should ask her out for coffee.
Danny Williams: I don't want... I'm not... I'm not looking for a relationship.
Steve McGarrett: Coffee's not a relationship. It's a beverage.
Dr. Max Bergman: Did you know that JPAC is the largest forensic lab in the world, and that it specializes exclusively in postmortem identification? Which, incidentally, is my favorite type of identification.
Joe White: You need a paper bag or something?
Dr. Max Bergman: Huh? Oh, sorry. It's just this place is like my Graceland.
LT. Ctherine Rollins: I should probably go pack.
Steve McGarrett: Yeah, listen, um, Catherine, uh, about this rain check, uh you're-you're probably gonna get some leave in the next few months. Why don't we meet somewhere halfway? I don't know. Mumbai or something?
LT. Ctherine Rollins: I like Indian food.
Kono Kalakaua: Chin, I'm really not up for a lecture right now.
Chin Ho Kelly: Good, because I'm not here to give you one. I'm here to apologize. Everything you're going through right now I've been through myself. Getting kicked off the force, dealing with disappointment, the frustration, the anger. I remember what that felt like. And I also remember that the only person who stood by me through all of it was you. You're not alone in this, Kono. When you want to talk, I'll be here.
- Song being played in the background of the bar where Blake lives is Brooks & Dunn "My Maria"
|Ha'i'ole ♦ Ua Lawe Wale ♦ Kame'e ♦ Mea Makamae ♦ Ma'eme'e ♦ Ka Hakaka Maika'i ♦ Ka Iwi Kapu ♦ Lapa'au ♦ Ike Maka ♦ Kil'ilua ♦ Pahele ♦ Alaheo Pau'ole ♦ Ka Ho' Oponopono ♦ Pu'olo ♦ Mai Ka Wa Kahiko ♦ I Helu Pu ♦ Kupale ♦ Leki ♦ Kalele ♦ Ha'alele ♦ Pa Make Loa ♦ Touch of Death ♦ Ua Hopu ♦ Ua Hala|