
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.
Irreplaceable French paintings vanish from a millionaire's private collection despite a fail-safe electronic security system.
In his search for the mobsters who injured him, McGarrett becomes romantically involved with a lovely fellow victim.
A businessman accuses the Five-0 squad of demanding $100,000 in protection money from him; guests Cameron Mitchell, Frank Gorshin.
A traveling circus provides spy Wo Fat with the opportunity to attack a visiting foreign minister who is under Five-0's protection.