
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.
A vengeful ex-convict (Don Stroud), partially paralyzed by a police bullet, begins shooting officers; guest Gerald McRaney.
An Asian dies on a flight from Bangkok to Honolulu when a bag of heroin in her stomach bursts.
An avenging man (Rich Little) pursues a drug dealer who contributed to a former addict's death; guest Mel Ferrer.
McGarrett and Danny investigate a drug ring in Singapore; guests Barry Bostwick, Victoria Principal, George Lazenby.