|Season 2, Episode 1|
|Air date||Sep. 19, 2011|
Ua Lawe Wale
It is also the first episode to have Masi Oka who plays Dr. Max Bergman in the opening credits and as such, Oka becomes a member of the main cast and also a series regular.
While in prison awaiting trial for allegedly killing Governor Pat Jameson, Steve struggles to cope but finds himself being confronted by Victor Hesse who promptly stabs Steve, injuring Steve so badly that he has to be taken to hospital for treatment. On the way to the hospital, Steve escapes the ambulance and goes off the grid while in the meantime, Danny, Kono and Chin struggle to come to terms with the events that have left H50 disbanded while Danny summons Steve's mentor to the island for help in proving Steve's innocence.
Due to his injuries, Steve is escorted to a hospital for treatment but on his way to the hospital, Steve escapes and goes on the run.
Kono goes on a stakeout and sees Wo Fat meeting Kurt Hauff, a weapons dealer but Kono is captured.
Meanwhile, Steve takes shelter at the home of HPD/H50 Medical Examiner, Dr. Max Bergman with Steve awakening to learn that Max has treated Steve's wound.
Chin and Danny find some footage taken from Jameson's office which shows Jameson, Wo Fat and John talking about something but while it clears Steve, it doesn't show Wo Fat's face.
Kono manages to escape and informs Steve, Chin and Danny that Wo Fat's planning on leaving the island. H50 storm Wo Fat's boat but can't find him.
In the resulting gunfight, Kono also kills Hauff who was in possession of materials capable of making a dirty bomb.
Steve soon learns that his father may have been working with Wo Fat from the camera but the audio track has been erased from the footage.
A few hours later, Hesse lies in his cell, dead, his throat slashed.
The prison guard who is actually Wo Fat in disguise gets into a car and is driven away with the driver being none other than Agent Jenna Kaye.
Steve McGarrett: You know, I could be wrong, it's rare. But you don't look happy.
Chin Ho Kelly: You're not carrying a badge anymore, Kono. I can't guarantee HPD backup.
Kono Kalakaua: *You* guys are my backup!
Danny Williams: Definitely been hanging out with McGarrett too long now.
- Dr. Max Bergman gets car sick when not the driver, and is allergic to shrimp.
- Max mentions thinking about cashing in his prehistoric fossil collection to put a downpayment to own a car like Danny's. He later does in a future episode.
- John McGarrett Knew Joe White for 34 years, even serving alongside him, and he later trained his son, Steve McGarrett.
- Steve was sent to live in California when he was 15, and joined the service when he was 18.
- Joe met Steve when he was 18, and training at Naval Amphibious Base Coronado in California.
- Steve was heard speaking Mandarin.
- Wo Fat and Jenna Kaye are revealed to be working together.
- Kono Kalakaua is the only original cast member not to spend time in jail. Steve spent just over a week in Halawa Maximin.  Chin Ho Kelly spent 8 hours in Halawa Maximin,  and was arrested 2 years later. . Danny Williams spent a few days in a Colombian prision. 
- Steve McGarrett killed 1 person. (The first survived) 
- Danny Williams killed 2 people.
- Chin Ho Kelly killed 1 person.
- Kono Kalakaua killed 1 person.
- Wo Fat killed Victor Hesse.
|Lieutenant Commander |
|Alex O'Loughlin||A Navy SEAL and the leader of the Hawaii Five-0 Task Force for Governor Sam Denning.|
|Detective Danny Williams||Scott Caan||2nd-in-command of the Hawaii Five-0 Task Force and Steve's partner.|
Chin Ho Kelly
|Daniel Dae Kim||A member of the Hawaii Five-0 Task Force.|
|Officer Kono Kalakaua||Grace Park||Youngest member of the Hawaii Five-0 Task Force, and Chin's cousin.|
|Dr. Max Bergman||Masi Oka||Chief Medical Examiner for the Hawaii Five-0 team.|
|Victor Hesse||James Marsters||A Northern Irish arms dealer who killed John McGarrett, Steve's father.|
|Jenna Kaye||Larisa Oleynik||An agent with the CIA.|
|Kamekona||Teila Tuli||An associate of the H50 team, and owner of Wailoa Shave Ice|
|Wo Fat||Mark Dacascos||A crime boss targeting Shelburne who is Steve's mother, Doris.|
|Joe White||Terry O'Quinn||Former Navy SEAL CO, and Steve McGarrett's mentor.|
|Detective Chan||Keo Woolford||A HPD Detective who appears in the episode.|
|Governor Samuel Denning||Richard T. Jones||The Governor of Hawaii.|
|Kurt Hauff||Jay Freis||A man who appears in the episode.|
|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|