Ka i ka 'ino, no ka 'ino (To Return Evil for Evil) Hawaii Five-0 : Season 10 Episode 11

When 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. After Adam’s ordeal in rescuing Tamiko and reconnecting with the Yakuza, he makes a bold decision about his future with Five-0.