At his mentor’s request, McGarrett persuades Max to redo the autopsy on a SEAL, thought to have committed suicide, in order to investigate his murder. Meanwhile, Chin Ho worries about Kono hanging out with a group of dirty ex-cops, including Frank Delano.

Gov. Denning assigns Officer Lori Weston to Five-0 to make sure McGarrett and team follow the new rules set by him and also apply her excellent profiling skills to the task force. Meanwhile, as Five-0 investigates the kidnapping of a teenage paddleboard champion, Internal Affairs Capt. Vince Fryer continues his interrogation of Kono.

While McGarrett sits in prison awaiting trial for the murder of the governor, Danny brings him a surprise visitor to help clear him. Meanwhile, Kono is suspended from the force, pending an internal investigation.

When Five-0 gets too close to the truth about Wo Fat and his associates, the criminal mastermind retaliates by trying to destroy the team. They’ve always played by their own rules, but when the Governor can no longer protect them, it’s time for Five-0 to pay the consequences of their actions.

With the invaluable information that was shared by Agent Jenna Kaye, Five-0 is closer than ever to capturing Wo Fat. Their mission takes an abrupt turn, however, when Danny is exposed to a lethal neurological agent that presents an even greater threat: bio-terrorism on the island.

It’s the worst kind of overexposure when world-renowned photographer Renny Sinclair is murdered while on assignment in Hawaii shooting the annual swimsuit edition of a top sports magazine.

When a crime lord moves against the family of an undercover NYPD detective who infiltrated his organization, it’s up to Five-0 to stop the policeman from exacting revenge.

While hiking in a remote area of the jungle to see the famed petroglyphs, McGarrett and Danny instead find a homicide victim. Meanwhile, their aunt’s failing health leads Kono and Chin Ho to visit home, where Kono finally learns the truth about the scandal that ended her cousin’s career with the Honolulu Police Department.

Five-0 combs a convention to find the killer of a sci-fi fan who was thrown out of a high-rise window. A CIA agent who’s interested in the Yakuza that killed McGarrett’s parents shows up in town to meet with Steve.

While Five-0 races to stop a mad bomber before he kills again, Danny gets an unexpected visit from his little brother, Matt, a fun-loving, Wall Street broker. The family reunion is cut short, however, when Danny discovers the real reason that Matt is in Hawaii.

Five-0 is first on the scene when a pirate attack turns an afternoon pleasure cruise into a kidnap-and-ransom nightmare for a group of wealthy spring breakers.

When the sole witness in a high-profile murder case disappears, Five-0 must head into the jungle to locate and protect her from assassins who are closing in fast.

Five-0 struggles to stay a step ahead of a major tsunami that has the island evacuating its shores as they investigate the disappearance of the head of the Tsunami Warning Center.

After a high-speed chase, the team makes a gruesome discovery; Chin Ho and his ex-fiancee are awkwardly reunited.

McGarrett discovers new clues in his mother’s murder when his sister is kidnapped.

It’s Christmas in Hawaii, but instead of celebrating, Five-0 is negotiating a hostage situation when the man who killed McGarrett’s father resurfaces. The murderer, Victor Hesse, threatens to detonate an explosive that he’s strapped to Chin Ho’s chest.

The wife of a newlywed couple is found disoriented with amnesia in Kahana State Park with the husband currently missing. The mother of the husband suspects the wife for staging the whole thing although Five-0 & M.E. Bergman may have discovered a potential newlywed serial killer.

Five-0 is baffled when a highly skilled ring of thieves pulls off a heist of an armored car, killing two security guards but leaving the money behind. Their only lead in the case requires Danny to reluctantly ask his ex-wife for a favor.

When a member of the security detail for an upcoming Aid Summit is murdered before he can reveal the details of an assassination plot, Five-0 is brought in to investigate the murder and protect the target, a ruthless dictator.

When Danny’s ex-partner is found dead at a Hawaiian luau the Five-0 team’s investigation leads them to some dirty cops and a powerful cocaine cartel.

When a Navy SEAL, who’s on the run for a murder he swears he didn’t commit, takes hostages and safe haven aboard the U.S.S. Missouri memorial battleship, McGarrett must use every SEAL skill in his arsenal to diffuse the situation.

When the CEO of a successful surf company is murdered, Kono revisits her past; Five-0 is thrown into the varied but interconnected worlds of North Shore surfing.

When the daughter of the U.S. ambassador to the Philippines is found dead, the governor tasks Five-0 with finding her abducted sister.

A violent convict escapes from prison and kidnaps a young couple on vacation; McGarrett’s estranged sister comes to town.

An escalating gang war spills into the stands of a high-school football game, killing several people; an unlikely partnership arises.

Following the abduction of a former NSA cyberterrorism expert, the team must rescue the man and prevent a breach of national security.

Steve McGarrett is summoned home to the island of Honolulu to bury his father after he is murdered by a madman. Governor Jameson wants Steve to head up a new elite police unit and she will give him full authority to get the job done. Initially he turns down the job, but when he meets the man in charge of the unit, he changes his mind.

Trapped on board the Odyssey, the members of SG-1 must live out the rest of their lives together when Carter activates a time dilation field to save the ship from destruction.

SG-1 hatches an elaborate plan to try and capture Adria, using Vala as bait.

Earth provides sanctuary for Vala’s estranged, con artist father after he provides intel about a Jaffa plot to attack the planet.

When a terrorist attack decimates a Jaffa summit Teal’c strikes out on a quest for revenge, believing that the perpetrator is one of his own pupils.

SG-1 realizes they have stepped through the gate into another planet’s museum — but are mistaken for a band of zealous rebels who have taken hostages.

When the Lucian Alliance puts a bounty on SG-1’s heads, Cameron Mitchell finds himself a target while attending his high school reunion.

When SG-1 discovers that Daniel Jackson has been turned into a Prior of the Ori, they must determine whether or not his plan to destroy the Ori is genuine.

An experiment gone wrong pulls Samantha Carter into a parallel reality, where she must save Earth from an Ori assault before she will be allowed to return home.

SG-1 tries to defend a planet from the Ori by hiding its people in another dimension. Vala attempts to convince her husband Tomin of the Ori’s true motives.

When the team finds Merlin himself, they must help him complete the Sangraal weapon before Adria and her Ori forces can track them down.

SG-1 races against Baal in the hunt to find the Sangraal, Merlin’s anti-Ori weapon, and comes up against a series of ancient trials.

Cameron Mitchell must go undercover inside the deadly Lucian Alliance to prevent his teammates from becoming casualties of an Alliance civil war.

Striken with amnesia and on the run, Vala takes a job as a waitress as she tries to piece together who she is and what happened to her.