Season 10, Episode 11 – “KA I KA ‘INO, NO KA ‘INO (TO RETURN EVIL FOR EVIL)”
Five-0 investigates a tourist helicopter that was shot down by a missile. They trace the stolen artillery to a ghost from McGarrett’s past, Wo Fat. Also, after Adam’s ordeal in rescuing Tamiko and reconnecting with the Yakuza, he makes a bold decision about his future with Five-0.