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 – 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.

Cast: Alex O'Loughlin, Scott Caan, Ian Anthony Dale, Meaghan Rath, Beulah Koale, Katrina Law, Taylor Wily, Dennis Chun, Kimee Balmilero, Chi McBride