Hawaii Five-O is an American police procedural drama series produced by CBS Productions and created by Leonard Freeman. Set in Hawaii, the show aired for 12 seasons on CBS from September 20, 1968, to April 5, 1980. The show starred Jack Lord as Detective Captain Stephen "Steve" McGarrett, the head of a fictional state police task force in Hawaii. The theme music composed by Morton Stevens became especially popular. Many episodes in the series would end with McGarrett's catchphrase, "Book 'em, Danno!"