In the Season 1 finale, Ben tries to relax and enjoy the Christmas he missed with his family when he's certain he didn't cause Tom's death, but his plans are changed by a shocking discovery. Meanwhile, Cornell prepares to make an arrest after all the evidence has been retested.moreless
Ben's discovery in the attic makes his relationship with Christy even more tense as she continues to keep him from seeing the kids, though he does get to spend some time with Abby at a Christmas fair. Meanwhile, Cornell returns to the crime scene looking for clues after a leak at the crime lab makes most of the forensic evidence unusable.moreless
Ben retraces his steps on the night of Tom's death with help from Dave in a desperate attempt to counter video evidence uncovered by Cornell that could be proof of his guilt. Meanwhile, the Crawfords' marriage continues to disintegrate, and the turmoil is having a devastating impact on their kids; and Ben's lawyer conceives of an alternative theory of the murder.moreless
Ben talks to a prison inmate and wonders if Cornell is abusing her authority, so he plots to turn the tables on her with an assist from Fenton, but an anonymous tip makes Ben the prime suspect once again, which pushes the Crawfords to their limits.moreless
Ben's unnerved by a vigilante who's been stalking him, but he rejects any police protection for himself while reluctantly accepting security for his wife and daughters. Staying with his friend Dave, however, isn't the safe haven Ben thought it would be.moreless
Ben learns where Natalie was two nights before Tom died, when she was allegedly babysitting, which leads to a confrontation with his neighbors, the Richardsons, and a revelation about the death of their own son. Meanwhile, Cornell confirms the murder weapon; and Ben's memory continues to fail him about the night of Tom's death.moreless
Ben struggles to keep his family together after a damaging revelation is made public right before the holidays, but he also discovers a shocking piece of evidence that could tie him to Tom's murder.moreless
Ben becomes the prime suspect in a murder after finding the body of his neighbor's young son, and he and his family are engulfed in a media firestorm after a detective's routine questioning.moreless
Ben starts to conduct his own investigation after learning shocking news about the murder case from Detective Cornell, and the deceased boy's mother suspects his estranged father may be responsible for his death.moreless
Captain Grover must steal $100 million dollars in order to get back his kidnapped daughter.
Steve and Catherine journey to Afghanistan to help a young boy whose family is responsible for saving Catherine's life many years ago.
As Five-0 investigate the death of a pool cleaner, they uncover a group of radicalized students who may be plotting a terrorist attack on U.S. soil.
After following up on a tip, Steve and Danny are trapped inside an abandoned building that is rigged to explode.
The daughter of a macadamia nut tycoon is murdered during Chin's high-school reunion. The investigation reveals that the victim was killed with a stiletto heel.
Five-0 investigate the abduction of a girl from her home which also resulted in her father being shot. Danny attempts to get his parents to reconcile and Jerry makes sense of a code he found on the bottom of McGarrett's champ box.moreless
Five-0 investigates three murders that appear related to a downed top-secret Chinese satellite. Captain Grover lets Clara accompany him on a ride-along.
The team investigate when the body of a real estate agent is found buried at one of his listings. Danny's mother unexpectedly comes to town with some extremely startling news.
An escaped convict out to prove his innocence kidnaps Steve and Danny. Grace punches out another student at school.
The murder of Chin’s father, 15 years ago becomes the focus of Internal Affairs and there are questions regarding Malia’s relationship with Chin and its impact on the prior investigation.
Captain Grover is aided by McGarrett in his search for a friend who has disappeared, after it seems like he's committed murder. Kono persists in her quest to find Adam.
A serial killer at the heart of Five-0's investigation puts Chin's life in danger. While on the shores of Oahu, Danny and Grace come upon an odd puzzle box.
When someone tries to kill a Pearl Harbor veteran, Five-0 links evidence to a crime committed within the internment camps on Oahu during World War II.
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
With national security in mind and at the behest of the Governor, McGarrett and Captain Grover set out to serve a warrant on a young computer hacker.
Five-0 is tasked with babysitting Mary's newly adopted baby, even as they investigate the murder of an undercover ATF agent.
Halloween and a shooting have Hawaii Five-0 looking for a man carrying out experiments and turning humans into zombie-like creatures.
Catherine's surveillance job turns deadly. In order to save Kono, Adam reflects on what his best move should be.
A runaway bride is the main suspect when a wedding crasher is murdered. Danny decides where his relationship with Gabby is headed.
To solve a double murder, Five-0 gets some help from a conspiracy theorist.