Hank McHenry and Johnny Marshall work as power company linesmen. Hank is injured in an accident and subsequently promoted to foreman of the gang. Tensions start to show in the road crew as rivalry between Hank and Johnny increases.

Scientists assembled to prove their methods are effective in criminal investigation try to solve a series of murders.

In the middle of a pictorial lecture on his recent expedition to the Mongolian Desert, Dr. John Benton,the famous explorer, drinks from the water bottle on his lecture table, collapses and dies. His last words "Eternal Fire" are the only clue Chinese detective Jimmy Wong and Captain Street of the police department have to work on.

J.B. Ball, a rich financier, gets fed up with his free-spending family. He takes his wife's just-bought (very expensive) sable coat and throws it out the window, it lands on poor hard-working girl Mary Smith. But it isn't so easy to just give away something so valuable, as he soon learns.

A gang of 'professional torches' burn down stores for the insurance money.

In this newspaper drama, a female reporter and a newsreel cameraman are both assigned to cover the Sino-Japanese war. They meet on the boat ride over and decide to team up. They are further assisted by a Chinese cameraman. The three of them manage to expose of spy ring operating out of the Shanghai office of the woman's newspaper.

Dr. Ralph Snyder and Dr. Frank Blake open an office together but soon split over a rivalry for nightclub singer Diana Wayne and a difference over ethics.

Joan Daley, a New York booking/press agent, attempts to recruit two local stand-ins, Jinx Terry and Lois Morgan, when the Cuban sister-act, Marianela and Rosita she as booked into the nightclub for which she works fails to materialize. Complications arrive when the real Cuban sisters show up.

Four flying G-Men protect America against enemy spies; one of the four assumes the identity of The Black Falcon, to befuddle the saboteurs even further.

Don Diego is a large ranch owner, the uncle of Dolores and the guardian of a young American, Steve Randall. Steve has just delivered a large herd of cattle to the ranch, where Don Diego has just found out that he must pay the local tax commissioner, Harkness a fine for unpaid taxes on a herd of over one-thousand cattle. Steve offers to drive the cattle to the commissioners office, even though he fells the fine is unjust. Arriving at the office, Steve learns that Harkness (who he has never met), who has a reputation for dishonesty, is out. Dropping by the cantina, Steve gets into a fight with Harkness, and Harkness swears vengeance on Steve, especially after Steve stampedes the cattle through the town.