An investigative reporter is murdered and Five-0 believes her death may be connected to her work. Meanwhile, Jenna Kaye asks McGarrett for his help delivering a ransom to rescue her fiancé who is being held by rebels in North Korea. McGarrett agrees and the mission goes south fast: Wo Fat used Jenna to set a trap for McGarrett in order to find out what he knows about "Shelbourne". Meanwhile, Danny and the team figure out that the reporter's death is connected to Jenna and when they lose contact with McGarrett, they enlist Joe White's help to rescue him. Without sanctioning from the military, Joe puts together some men to join Five-0 and they head to N. Korea to rescue McGarrett.