
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.

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.

Brilliant collegians perpetrate a tidal-wave hoax as part of a jewelry heist; guests Leigh McCloskey, Sid Clute.

McGarrett offers himself as a hostage in an attempted prison break by two "lifers"; guests Gavin MacLeod, Gerald S. O'Loughlin.