ION Mystery

A Russian spy steals a flash drive containing classified information that puts a Five-0 member at risk; McGarrett learns why Catherine left; Abby keeps her mission a secret.

The body of a man left for dead off the coast of Oahu leads Five-0 to a deadly slave trade business that is operating aboard a fishing vessel.

Grover is forced to take his family on the run when a dangerous mob boss seeks revenge for a 15-year-old case.

The team investigates the theft of high-tech indestructible suits made for the military; Jerry and his sister try to save a captive elephant.

When a deliberate chemical spill enables six dangerous inmates to escape, the team goes on an intensive manhunt to find them.

The team races to save an abducted college student from a dangerous vigilante; Max, Kamekona and Flippa struggle to survive after being shipwrecked.

The Five-0 team learns that one of its own has a deep connection to the young daughter of a woman who was murdered in her home.

Five-0 tries to protect a wounded Gabriel and plan an escape when enemy gunmen storm the dilapidated building in which Gabriel is trapped.

McGarrett and Danny pose as drug pilots in a plan to stop a meth epidemic on the island; Danny is forced to break cover and land the plane when McGarrett is seriously wounded.

The team hunts for a murderer who has been targeting serial killers, marking their corpses with an ivory chess piece.

A rogue MI-6 agent is the key to finding a terrorist who plans to cause the meltdown of nuclear reactors across Europe; McGarrett and Danny need the help of an FBI profiler to find a killer.

After finding a corpse in her bed, FBI profiler Alicia Brown joins McGarrett in a hunt for a killer; Kono reconnects with a former surfing competitor.

When the serial killer that Alicia and McGarrett have been hunting kidnaps them, it's up to Five-0 to find them before it's too late.

A cache of guns is stolen by a person looking to make a statement on gun violence; Kono and Adam are reunited.

Mac and the team infiltrate a hotel used as a hideout for criminals and find a woman with vital information on Codex.

When Taylor's former protégé is killed while preventing a bioweapon from falling into the wrong hands, Mac and the team must find the weapon, so Desi can pull off the ultimate heist before it's sold to a terrorist cell.

When Russ is kidnapped, Mac and the team must break out a previously murderous psychopath, now pacifist, from prison to help find him; while on the run, Mac and Desi are forced to confront their relationship issues.

Mac's meeting with Desi's parents goes sideways when her brother finds himself in trouble and needing their help; Russ and Matty must ask an old nemesis for assistance when their new recruitment candidate is kidnapped.

Using a cryptic postcard as their only clue, Mac and the team must solve a fallen friend's final case and bring him justice.

During COVID-19's first stay-at-home order, Mac, Bozer and Riley must stop a crime in progress at their neighbor's house; Russ' romantic fling takes on a longer and more complicated turn when they quarantine together.

A secret experimental cancer treatment Mac's developing with a friend is discovered when culprits ransack their lab, kidnap Mac's partner and plan to use the research to create a powerful new nerve agent.

Mac and team rush to help when Matty's former mentor, Ian Cain, and his embassy staff come down with a deadly, mysterious illness; Taylor and Bozer work with Jerry Ortega to infiltrate a Codex cell.

The BAU hunts for an Unsub who deliberately disfigures victims; Rossi and his ex-wife have an uncomfortable reunion.

The BAU plays a dangerous cat and mouse game with a convicted serial killer who may have information on the whereabouts of two kidnapped boys.

Hotch is arrested by a SWAT team and suspected of conspiracy; when the team members scramble to prove Hotch's innocence, they discover a larger plot may be on the horizon.

New recruit Luke Alvez helps the team capture a killer who escaped from prison with 12 other convicts.

J.J. is shaken after investigating the case of two abducted children, and tells her husband about the events.

As the BAU welcomes back Emily Prentiss, they're called upon to investigate the disappearance of three women.

The team searches for a serial killer along the Appalachian Trail in rural Virginia.

The BAU investigates the case of two murdered families, where two high school students are the sole survivors.

Three children vanish while riding their bikes on the same path where a similar unsolved disappearance took place 30 years earlier.

A man who believes himself to be the brother of Dr. Tara Lewis arrives in town, knowing everything about Tara's family; Tara is unable to make contact with her real brother.

The BAU team investigates when the remains of a dozen people are discovered along a creek bed in Yakima, Wash.

While conducting a profiling course on his birthday, Rossi gets a call from serial killer Tommy Yates, who gives him the location of his latest victim.

The team investigates when home invasions involving casualties strike upscale neighborhoods in San Diego.

The BAU investigates when a bizarre hieroglyph is found under a deceased homeless man's armpit; Reid decides to take his mother out of a clinical study early to bring her home.

The BAU team is called in to investigate when male bodies are discovered that seem to be impossible to identify.

When a BAU member gets in trouble in Mexico, the team enlists the services of the International Response Team for help.

When a condemned ax-murderer on death row appeals for his life, the team must investigate.

Horatio finally learns the truth about what happened to his brother, and the repercussions will change his life forever.

Horatio finds himself with a price on his head when he makes plans to shut down the illegal smuggling operation of one of Miami's fiercest gangs.

A rich couple's daughter dies when the family is trapped on a burning yacht in shark-infested waters.

When a teenage tourist goes missing, the team investigates the dark side of Miami's nightclub scene.

Evidence suggests that a confessed killer is actually innocent; Horatio works to collar the actual culprit before the man falls victim to the system.

Three suburban housewives on a weekend in Miami are the prime suspects when their hotel's handsome pool boy is found murdered.

When a woman Horatio has been dating is murdered, and he is the last one to see her alive, the team tries to learn who would have the motive and the method to frame him.

A convicted murderer escapes and begins to kill again, and the assailant's original arresting officer, Mac Taylor (Gary Sinise), comes to help Horatio Caine recapture the felon.

Ryan's life is in jeopardy when the team is caught in the midst of a deadly divorce case.

The team searches for a group of video gamers that has started to play the game in real life, killing police officers, stealing evidence, raping women, and robbing a bank.

Horatio and his team investigate the murder of a suspected drug lord as one member of the group is arrested for buying marijuana.

When Angela and Hodgins wake to find a corpse in their bedroom, they believe Pelant is behind it; against Booth's wishes, Angela and Hodgins start their own investigation.

The team investigates when two bodies are found at the same burial plot; Brennan and Booth discuss after-death arrangements; Daisy returns for the first time since the breakup.

When a female roller derby skater is killed and dismembered, Angie goes undercover to help solve the case; Cam tries to learn more about Booth's secretive hospital appointments.

While in the hospital after being shot at the lab, Brennan struggles with visions of her mother that defy her usual logic; evidence may link Brennan's attacker to the Jeffersonian.

As the team investigates the death of a seemingly innocent 15-year-old boy, they learn that he was involved in illegal activity.

When a well-educated but eccentric intern starts working at the Jeffersonian, Brennan tries to be more open-minded about scientific questions.