
Detective Steve McGarrett (Jack Lord) heads up Hawaii Five-O, a special division of the state police tasked with bringing down organized crime on the islands. The Five-O team works with local police from time to time on individual cases, and McGarrett's nemesis is crime kingpin Wo Fat. The show, which ran for 12 seasons during its original run, is famous for its catchphrase "Book 'em, Danno," said by McGarrett at the end of most episodes. The show's theme song, composed by Morton Stevens, became popular during the show's original run.

An Eastern European tennis star, secretly in love with an American player (Tim Matheson), defects in Hawaii; guest Kurt Russell.

A girl dies under the influence of drugs possibly supplied by a self-proclaimed guru; guest Ed Flanders.

McGarrett suspects a link between the appearance of a mystery sub and the murder of a U.S. Navy officer; guest Geoffrey Lewis.

A man carrying bubonic plague arrives in the islands the same time as plans for a top-secret weapon vanish; guest Jackie Coogan.