 A close friend of McGarrett s is found floating dead in the water. However, his death is suspicious due to the fact that the man couldn t swim and his lungs are full of fresh water instead of salt water. McGarrett is then informed that he is the latest agent to be found dead of suspicious circumstances. It is later revealed to be an effort by Chinese agent Wo Fat to find out the name of Control, the head of intelligence for the Pacific theater of operations. McGarrett is then chosen to become the next victim of Wo Fat s torture.