Steve McGarrett is the head of a special investigator unit of the Hawaii State Government. In this two-part episode, McGarrett probes the death of a close friend, only to discover that the man did not drown as was commonly believed. Clues lead to a foreign ship in the harbor manned by an unusual crew.

Steve McGarrett is the head of a special investigator unit of the Hawaii State Government. In this two-part episode, McGarrett probes the death of a close friend, only to discover that the man did not drown as was commonly believed. Clues lead to a foreign ship in the harbor manned by an unusual crew.

Steve McGarrett is assigned by the governor of Hawaii to break up a confidence racket that is bilking rich visiting widows of their fortunes.

A native's love of his unspoiled homeland, a mysterious woman with a camera, a man with a briefcase, and a millionaire industrialist are pieces of the strange puzzle confronting McGarrett.

A Kidnap hoax and publicity stunt by a young rock 'n' roll singer who decides his career needs a publicity boost backfires when his father offers a huge reward for his return.

McGarrett and his squad must protect a crime boss, facing prosecution, from a society of Japanese assassin.