Young Bart Collins lives with his widowed mother Heloise. The major blight on Bart's existence is the hated piano lessons he is forced to endure under the tutelage of the autocratic Dr. Terwilliker. Bart feels that his mother has fallen under Terwilliker's sinister influence, and gripes to visiting plumber August Zabladowski, without much result. While grimly hammering away at his lessons, Bart dozes off and enters a fantastical musical dream.

Orphaned as a young child and adopted by a band of notorious thieves, now-grown Ali Baba sets out to avenge his father’s murder, reclaim the royal throne, and rescue his beloved Amara from the iron fist of his treacherous enemy.

On an airliner bound for Hong Kong, Tony, a career crook who deals in stolen diamonds, agonizes over whether he should stick with his girlfriend or pursue Pamela, an intriguing novelist with whom he's instantly infatuated. Viewing Tony's dastardly deeds as great material for her new book, Pamela gladly encourages him to continue his criminal behavior.

The Dead End Kids join the war effort in this feature-length version of the Universal serial Junior G-Men of the Air. The fiendish Black Dragon Society, led by the sinister Baron (perennial B-movie villain Lionel Atwill) plots to pave the way for an Axis invasion of the U.S.A. by destroying America's defenses. When their plans are discovered by the Dead End Kids, the gang is too suspicious of "the coppers" to ask for help. The FBI send in their Junior G-Men to stop the spies, but when one of the Dead Enders is kidnapped, the two groups must work together to smash the Black Dragons once and for all!

A government agent travels from the United States to Mexico to nab drug dealers.

Japanese spies attempt to subvert America's war effort; G-Men attempt to thwart their plot.

A federal agent's life is in danger when he's exposed while investigating a parole scheme.

A private detective, who has been shot, stumbles into the office of Michael Shayne (Hugh Beaumont), and dies before Shayne can question him. Shayne finds a baggage ticket in his hand. He claims it and finds the checked-bag contains the loot from a robbery. Now, he has about fifty minutes left of the running time to find the crooks, bring them to justice and return the money to the rightful owners. And needs all of it.

Two hit men walk into a diner asking for a man called "the Swede". When the killers find the Swede, he's expecting them and doesn't put up a fight. Since the Swede had a life insurance policy, an investigator, on a hunch, decides to look into the murder. As the Swede's past is laid bare, it comes to light that he was in love with a beautiful woman who may have lured him into pulling off a bank robbery overseen by another man.

A group of street kids battle a terrorist gang led by a Japanese spy.