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

A master criminal called The Spider puts the famous detective's brother under a hypnotic spell and turns him against Dick.

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

A gambling ring run out of the Mogul Taxi company is intent on fixing college football games. Football star Harold "Red" Grange is a target for the gamblers, whose thugs try to eliminate Grange from playing. Grange's buddy Buddy is himself vulnerable to blackmail, since he has broken team rules by marrying. The crooks use all their wiles to keep Grange and Buddy from leading their team to victory.

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

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

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