A murderous gang of counterfeiters has kidnapped the government's best engraver and is forcing him to print virtually undetectable phony money. The Secret Service sends its toughest agent, Jack Holt, and a female partner after the gang.

The adventures of master detective Sherlock Holmes as he and his assistant, Dr. Watson--and, somewhat reluctantly, the bumbling Inspector Lestrade--battle criminals in London.

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

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

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

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

An expedition sets off for the last land of Mu, where legend has it that a killer death ray is emitted from the eye of a golden idol.

A nouveau riche hillbilly family moves to Beverly Hills and shakes up the privileged society with their hayseed ways.