Joe Mannix is a Los Angeles-based detective who ends up taking a lot of punishment. When the show starts, he works for a large L.A. detective agency, Intertect. But beginning in season two, he sets out on his own and becomes a private investigator, assisted by loyal secretary Peggy Fair, the widow of a police officer. In the course of solving crimes, he can be expected to be shot, beaten, knocked unconscious, driven off the road or similarly injured. But despite all the bodily trauma, Mannix always gets his man.
It's Captain Kirk! Uh, actually, it's William Shatner as Sgt. T.J. Hooker. This time he's a former detective who demotes himself to street patrol, where he feels he is needed. Assigned to the Academy Precinct of the police department, Hooker teaches rookies. With rookies like Stacy Sheridan and Vince Romano, Capt. Kirk, er, Sgt. Hooker has a pretty good team on his hands.
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.
Dr. Mark Sloan is chief of Internal Medicine at Community General Hospital -- and sometime consultant to the local police department. When he's drawn into a case, he combines sleuthing and medicine to solve the crime. That crime is usually one his detective son, Steve, is working on as a member of the local police department. Dr. Sloan's medical colleagues, including doctors Amanda Bentley, Jack Stewart and Jesse Travis, are also frequently drawn into his investigations.
Traditionalist veteran cop Lt. Mike Stone is partnered with Inspector Steve Keller, a young, inexperienced college-educated go-getter in the homicide division of the San Francisco Police Department. The two enjoy a bantering relationship while they hunt down the bad guys as Stone teaches Keller the ropes.
Handsome Las Vegas gumshoe Dan Tanna investigates suspicious deaths for his boss, Sin City bazillionaire Philip Roth. Helping him is Binzer, a former crook and now his legman; Beatrice, his dependable assistant; and Angie, his sexy but dim receptionist, who moonlights as a showgirl.