A wealthy publisher uses a disguise and calls himself the Green Hornet to fight crime in his city.

New York City policewoman Casey Jones' assignment to fight crime often entails her going undercover in some of the seediest and most dangerous parts of the city.

A newspaper publisher and his Korean servant fight crime as vigilantes who pose as a notorious masked gangster and his aide.

Former combat cameraman Mike Kovac is now a freelance photographer in New York City, specializing in difficult and dangerous assignments where he can get the kinds of pictures that other photographers can't, or won't take. He sometimes gets help, often reluctantly, from his contact in the police department, Lt. Donovan, and advice from his immigrant father Anton.

A 15 episode serial in which Blake battles the "Scorpion" over possession of a 'death ray' machine.

A mysterious criminal known as The Whispering Shadow commits crimes by means of a gang he controls by television and radio rays. Jack Norton, whose brother was murdered by The Whispering Shadow, suspects that the eerie Professor Strang - whose ghostly wax museum contains figures far too lifelike - may be involved in the crimes.

A military intelligence officer and a pretty reporter try to find a scientist whose inventions can destroy the world.