Doug Mossman

McGarrett travels to North Korea with Jenna Kaye to deliver ransom to rebels holding her fiance hostage; the team investigates the murder of an investigative reporter who appears to have connections to Jenna.

George and Tom land on a strange island.

A young Marine veteran suffers a psychotic breakdown, which causes him to believe he is back in the battle zone in Vietnam. When Danny Williams tries to assist him, Austin holds him prisoner in a hospital ward.