Mr. Moto's Last Warning

Based on the 1930's comic strip, puts the hero up against his arch enemy, Shiwan Khan, who plans to take over the world by holding a city to ransom using an atom bomb. Using his powers of invisibility and "The power to cloud men's minds", the Shadow comes blazing to the city's rescue with explosive results.

Julia is babysitting two young kids while a doctor and his wife are out. During the evening, a stranger knocks on the door asking Julia if she can call the auto club so he can get a tow. The phone line is dead though. This is all part of the act as he has made his way inside and abducted the two children.

A private detective is hired to find a young heiress but finds himself accused of murder.

A deranged artist who may have murdered his wife is investigated by the Whistler.

A guilt-ridden man blames himself for his wife's death and secretly pays an assassin to kill him. But then he finds out that his wife isn't dead at all. And now the assassin is on his trail, with no way to call off the hit.

An evil hyponotist/ventriloquist plots to gain an heiress' millions.

The Japanese detective rounds up a league of assassins for Scotland Yard.

A drifter claims the money in an old bank account. Soon he finds himself the target of two men who turn out to be the sons of the man's old partner, who is now in prison because of a conflict with him over the money in that account.

A dying millionaire marries his nurse for companionship, only to experience a miracle cure.

A trio of former sideshow performers double as the "Unholy Three" in a scam to nab some shiny rocks.

A news reporter-commentator at a combined radio-television broadcasting station gives up his stand against the election of a corrupt mayoral candidate after a gangster threatens his family. Features tidal wave stock footage from RKO's "Deluge" (1933), q.v.