Sawyer's wound becomes life-threatening as he, Michael and Jin make their way through the interior of the island with the tail-section survivors.
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.
Grover is forced to take his family on the run when a dangerous mob boss seeks revenge for a 15-year-old case.