The Dead End Kids go after a gang known as the Sea Raiders, which is sinking Allied shipping.

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.

Mandrake and his assistant Lothar are working the cruise lines and make the acquaintance of Professor Houston who has developed a radium energy machine, which is much coveted by a masked Crime Lord known as "The Wasp".

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

A madman sets out to destroy a group of Chinatown merchants.

When his father is killed in a train wreck, Larry Baker vows to unmask a mysterious criminal called "The Wrecker," who has targeted the L&M Railroad for deadly" accidents."

Police detectives battle the League of Murdered Men, a gang of resurrected dead criminals.

A crime fighter known as The Spider battles a villain called The Octopus, who is out to sabotage America and install his own government.