Leonard Freeman

Doris needs Steve's help on a clandestine mission to take back an incriminating microfiche. Kono is in jeopardy whilst getting closer to finding out Adam's secret.

Things turn dangerous for a talk show host and her crew following Five-0 around when they run into Wo Fat.

Steve reflects back on his last mission in North Korea as he and Catherine recover the remains of fallen soldier.

During the pro-bowl weekend in Hawaii, the team catches a case investigating a murder and finds help from Arian Foster, running back for the Houston Texans.

The daughter of a murdered Lua master comes to Hawaii Five-0 for help. Steve decides to have a private investigator keep tabs on his mother.

A man who was injured years ago begins taking revenge on the police officers who caused his injuries, including Steve whose father was one of the officers responsible for his maiming.

Chin is kidnapped and taken to the Halawa Prison, where he is dressed as an inmate. He must find a way out before his identity is revealed.

A camping trip with Grace doesn't turn out as planned when an armed man takes Steve and a little girl hostage. Kono meets Adam's dodgy brother just out of prison.

While Danny gets assigned to protect a Victoria's Secret model, Max and Sabrina find themselves in danger when a bank robbery goes awry.

When a therapist's patient is murdered, Steve finds evidence that the therapist may be involved. Catherine finds herself mixed up in Doris' past, when a former target is looking for payback.

Steve attempts to arrange a reunion between his mother and sister. When a young computer hacker is murdered Hawaii Five-0 steps in.

Forced to remain completely immobile, Danny tells Steve about his toughest case when he was a cop in New Jersey while bomb techs try to disarm a bomb he inadvertently triggered.

Halloween has Five-0 investigating a ritualistic murder, with evidence the killer will strike again.

Steve's attention is divided between their current investigation into a Polo players murder and the return of his mother.

Steve and Danny take some time off to enjoy a little fishing only to find themselves stranded and facing pirates.

Steve goes to Cat for help finding his mother. When an art heist turns deadly, Five-0 turns to August March.

McGarrett captures Wo Fat in a special ops raid but he learns that the Yakuza have been trailing them and both of them are marked for death.

Max reveals some revealing information about his childhood in order to convince Five-0 that a serial killer is on the loose.

McGarrett tracks down August March, a former diamond smuggler, to help clear his sister when she's arrested for smuggling conflict diamonds.

Five-0 investigate the mysterious death of a radio DJ and uncovers evidence that leads them to Tony Archer, a local PI and retired NYPD bomb expert.

A Hawaiian history buff tries to help Five-0 with their investigation of a man dressed as a Hawaiian NaKoa warrior who was found murdered in the jungle.

When the actions of Five-0 almost result in an international incident, Lt. Governor Denning announces that one team member will lose their job.

A crooked cop who is seeking revenge against Danny decides to visit the island, putting Danny and his family in jeopardy.