McGarrett and Danny recruit Tani Rey (Meaghan Rath) to join the task force when diabolical hacker Aaron Wright (Joey Lawrence) releases a dangerous arsonist from prison. ...

McGarrett and Five-0 help save an injured police dog and in turn use him to find who killed his partner and ambushed his team making a drug bust. McGarrett receives a vis ...

Local big shot crime boss Jimmy Okada gets hit in a rather spectacular fashion, and Five-O's old friend from MI5, Harry Langford, lends a hand on the case. ...

The lives of Five-0's informants are in danger when the HPD system is hacked and one ends up dead, forcing McGarrett to enlist the help of hacker Aaron Wright (Joey Lawre ...

At Halloween, Five-0 must investigate a string of murders that mirror stories from well-known Hawaiian folklore. Also, Grover is called to visit a man hours away from exe ...

While trying to solve the murder of two tourists, Steve has to deal with a stress management consultant his friends have hired. ...

McGarrett and Adam join Junior at a bank heist in progress, forcing all of them to make difficult decisions in how to proceed into the bank and after the suspects. Tani h ...

McGarrett poses as a pilot to investigate the cause of a plane crash that led to the death of a pilot in an air race. ...

When investigating a deserted yacht adrift at sea, McGarrett, Danny, Tani and Junior are exposed to a deadly bioweapon and the rest of Five-0 have only eight hours to fin ...

When Danny is shot while quarantined in the hospital with McGarrett, Tani and Junior, he's left unconscious and clinging to life, imagining a future for everyone in Five- ...

It's Christmas Eve and Danny tells Charlie a bedtime story about a recent Five-0 case involving bad Santas and a holiday miracle. Real-life military veterans Jason Redman ...

McGarrett rounds up every gang-related criminal on the island to find the culprit behind the killing of an FBI agent who was cracking down on organized crime. ...

When a man accused of killing his wife threatens to kill himself, Grover reveals how he was once on the brink of suicide himself. ...

When a corpse is stolen from the cemetery, the team races to find out who the man was and why he was taken; Adam recruits someone to become an informant; Tani receives de ...

He Puko'a Kanu 'Aina- McGarret and Danny investigate the murder of a private detective whose client was killed the same way. ...

Five 0 investigate the murder of the headmaster of a private school sending Tani and Junior undercover as prospective parents. Meanwhile Adam is forced to produce a huge ...

Adam's mission to take down organized crime goes sideways when the bait he used falls into the wrong hands; Adam begins to doubt Jessie's allegiance. ...

A flashback about the case that changed Danny's life and an answer about who shot him by meeting a woman who was married to the shooter. Jimmy Buffett returns, Alex O'Lou ...

A hitman, Leroy Davis (Frankie Faison), McGarrett's father failed to arrest comes to McGarrett to finally confess his crimes and admit where he buried his victims. Also, ...

Catherine returns to Oahu, Hawaii, U.S.A. to ask Five-O for some help in order to follow up on a lead for one of her Central Intelligence Agency cases. (#188) ...

Harry Langford enlists McGarrett and Danny's help to track down a teenage British royal who has run away while under his protection; Grover, Tani and Junior work a 25-yea ...

Duke is forced to steal crucial evidence from the police locker in exchange for his kidnapped granddaughter; Jerry goes undercover at a mental health facility to solve a ...

Steve and Five-O take on the mob when a former boss is killed; Junior's friend is on the run after witnessing the murder. (#191) ...

Steve joins Junior and his SEAL team on a mission to capture an elusive person who is holding his mentor hostage; Gerard and Kamekona help Lou and Tani on a murder case i ...

The team discovers a Russian spy ring hiding on Oahu, Hawaii U.S.A. when one of their submarines appears off the coast. (#193) ...