ION Mystery When the team almost causes an international incident, Lt. Gov. Denning decides that one of them should be fired; Chin Ho faces the harrowing task of choosing a Valentine's Day gift for Malia. 2026-10-06 The team investigates when a man dressed as a Hawaiian NaKoa warrior is found dead near the site of a war re-enactment. 2026-10-06 The team crosses paths with a retired NYPD bomb expert while investigating the death of a famous talk-radio host. 2026-10-06 When McGarrett's sister is arrested for smuggling diamonds, he enlists the help of an ex-con to set up a sting. 2026-10-06 Max reveals shocking information about his childhood to help the team track a serial killer who may have ties to Max's past. 2026-10-06 When a suspect threatens to release a deadly virus, the Five-0 teams up with Special Agents G. Callen (Chris O'Donnell) and Sam Hanna (LL Cool J). 2026-10-07