While Five-0 hunts for a notorious criminal who has never been seen, Kono must fight for her life when she discovers the villain's identity. Also, Kono confesses to Adam that she's conflicted about their future together because of his ties to his formerly corrupt family business. Michael Imperioli guest stars as a street-wise barbershop owner.
Harry Langford (Chris Vance) enlists McGarrett and Danny's help to track down Lady Sophie (Alana Boden), a teenage British royal who has run away while under his protection. Also, Grover, Tani and Junior work a 25-year-old murder case after a mysterious Betamax tape arrives at 5-0 headquarters.
After a 16-year-old kidnap victim, Amanda (Lyrica Okano), escapes her captors, her parents hire Magnum, who experienced similar trauma as a POW, to find who took her.
