In a small park in downtown Honolulu, Steve McGarrett meets his mentor, Joe White who introduces him to Special Agent Kensi Blye, an agent with the Naval Criminal Investigation Service out of the NCIS Office of Special Projects in Los Angeles.
In addition, Steve learns that John is saying the word, "Shelburne" over and over again with Kensi having gotten the word thanks to the fact that she's a lip-reader.
Unfortunately, Steve has to leave after getting a call concerning a new case.
A while later, Steve arrives at the home of Jake Griffin with the house being full of members of the Honolulu Police Department and the Hawaii Five-0 Task Force who are busy processing the crime scene.
Jake is dead, having drowned in the swimming pool of his home.
The team investigate Jake's murder and realize that it could be connected to a series of home invasions that have taken place recently.
A while later, the team invade a house where the family who live there are being held hostage and they successfully apprehend all the members of the gang with H50 realizing the gang did not kill Jake.
They soon realize that Jake's brother-in-law, mixed martial arts (MMA) instructor Marshall Martel is the one responsible for killing Jake and Marshall attempted to cover up the killing as a home invasion gone wrong.
Steve later participates in a charity MMA fight against Chuck Liddell, taking the place of another fighter, Vitor Boriero who Steve injured while chasing Boriero.
Despite his best efforts, Steve loses to Liddell.
Meanwhile, Joe meets Wo Fat with the two men getting into a brutal fight.
After Joe manages to recover with Wo Fat having fled, he heads to Mokoto's place, only to learn that Wo Fat has killed Mokoto.
- 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 Officer Kono Kalakaua
- Masi Oka as Dr. Max Bergman
Special guest star
- Daniela Ruah as Special Agent Kensi Blye
- Mark Dacascos as Wo Fat
- Shawn Hatosy as Marshall Martel
- Annie Wersching as Samantha Martel
- Taylor Wily as Kamekona Tupuola
- Gino Anthony Pesi as Vitor Boriero
- Chuck Liddell as himself
- Terry O'Quinn as Joe White
- Kevin Yamada as Mr. Lasko
- Traci Toguchi as Mrs. Lasko
- Kila Packett as Dave Lockhart
- Dylan Bell as Josh Griffin
- Christian West as Ref
Lori Weston: You know it's bad luck to tape your own hands, and you, you want to wrap it a little thicker over your knuckles. Let me help you out with that right hand.
Steve McGarrett: You know how to do this?
Lori Weston: Yeah, did Muay Thai, little jiujitsu.
Steve McGarrett: Really?
Lori Weston: Yeah. Used to spar with my ex-boyfriend. It was kind of fun until I started beating him.
Steve McGarrett: Hey, uh, is Kensi still with you?
Joe White: No, I dropped her off at the airport an hour ago. Why?
Steve McGarrett: Oh, I was just wondering. I mean, you guys seemed to have, uh, you seemed to have quite a past.
Joe White: Steve, she's young enough to be my daughter.
Steve McGarrett: You know something, Joe? She kind of reminds me of wife number two. Tall, dark, lethal. Seems to be your type.
Joe White: Sorry, you're breaking up. (Joe smiles)
Steve McGarrett: (to Danny) Am I driving? Of course I'm driving.
Steve McGarrett: Who knew charity hurt so much?
Kono Kalakaua: Boss, when you got back up, and went after that guy, it was pure ...
Chin Ho Kelly: Pure imua, brah!
Danny Williams: That means pure stupidity, and we're all in agreement.
Steve McGarrett: What you got going on with that hand there, Danno?
Danny Williams: Enough to give ya a beating buddy, bring it.
- Kensi Blye who appears in this episode is a main character on the CBS crime drama series, NCIS: Los Angeles which is a spin-off of the main NCIS series.
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