Peter Jae

When a researcher with the Department of Defence is found dead, Nell must put her high IQ to the test when she goes undercover as his replacement. Meanwhile, Hetty's ability to lead the team is questioned.

The team enlists an old friend when a crime boss is murdered, triggering revenge killings across the island, while McGarrett and Danny work out details concerning their new restaurant venture.

Magnum and Higgins help a mixed martial arts fighter who is being pressured by a gang to throw an illegal fight; Kumu is arrested for stealing an artefact from a collector that should be returned to its original resting place.