
ION Mystery invites you to join the investigation with edge-of-your-seat thrillers that will keep you guessing until the very end. Find the clues, discover the motive, and solve the crime, every day of the week on ION Mystery.

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.

On Halloween, the team investigates the murder of a medium who was apparently frightened to death by a poltergeist; a mysterious death cult kidnaps Kono and Adam.

Catherine informs Five-0 that McGarrett's mother has been captured and is in danger of being executed for trying to free Wo Fat's imprisoned father; Chin is unable to delay Sara's adoption.

While Danny chaperones Grace's high school dance, the venue is seized by terrorists, who hold everyone hostage with the intent of abducting a diplomat's son; Danny and Grover discover that Will is Grace's secret boyfriend.

A conspiracy theorist with compelling information that JFK's own cabinet planned his assassination is murdered.