With the President on the way to Oahu, Five-0 is tasked with the murder investigation of a secret service agent. Steve's Aunt Deb comes for a visit along with an eye opening secret.moreless
Five-0 is tasked with babysitting Mary's newly adopted baby, even as they investigate the murder of an undercover ATF agent.
Piper gives Larry cause to worry about her becoming too absorbed in her prison routine when she spots a legendary feral chicken.
As elections are held in the prison for places on the council, Piper attempts to avoid the racial campaign polarisation.
Piper tries to get the prison track reopened but has difficulty getting Healy on board. Meanwhile, we learn how Watson ended up in prison by looking at her promising past. Larry struggles over writing an article about Piper, the guards search for a smuggled cell phone, and Mendez tangles with Red.moreless
Larry writes an article about Piper and Red smuggles drugs into the prison. Meanwhile, two babies are born.
Piper's inappropriate behavior sees her in solitary over Thanksgiving, preventing Larry from seeing her.
Some delinquent teenagers are the subject for reform by the inmates and Pornstache suffers a setback in his side-business. Meanwhile, Pennsatucky learns a new skill.
While Larry is interviewed on the radio, the prisoners mourn a recently departed inmate.
Pennsatucky feels disrespected by Piper and Larry gives her an ultimatum.
The prison inmates organize a Christmas pageant and Piper realizes that her life is in danger. Meanwhile, Red's attempt to retake her kitchen does not go to plan.
Steve attempts to arrange a reunion between his mother and sister. When a young computer hacker is murdered Hawaii Five-0 steps in.
The artists tattoo people who have never had a tattoo and their friend or family member.
McGarrett tracks down August March, a former diamond smuggler, to help clear his sister when she's arrested for smuggling conflict diamonds.