Aloha Ke Kahi I Ke Kahi

In the season premiere episode, McGarrett and Wo Fat make a narrow escape from maximum security, gunman storm Five-0 headquarters and Catherine is taken hostage. Now, in McGarrett’s quest to save Catherine, he must break the rules and go head-to-head with new SWAT Commander Captain Grover (Chi McBride). Meanwhile, Kono and Adam’s secret location in Hong Kong is compromised.