Eugenia Yuan

Danny is abducted and wounded by Wo Fat's wife, who is after the cypher Steve's mother left him.

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.

Mitch is injured as he attempts to track down the sister of a girl he rescued only to find out that the woman he rescued is pregnant and cannot return back to China in fear of losing the child.