A Nazi spy ring is after a chemical formula that increases the power of ordinary gasoline for U.S. Army aviation use. Two U.S. chemical companies are developing the formula, with each working on half for security purposes. The spies get half the formula and know that either of two chemists, Robert Norton or Tom Fielding, knows the rest. They capture Fielding, through a ruse by gang member Linda Pavlo, and threaten the life of his sister Nancy and his mother if he does not give them the formula. To protect his friend Fielding, who does know the formula and is engaged to Nancy, Tom pretends to know the secret and boards the Dawn Express plane with the spy leader and his gang.

A San Francisco lawyer uses a woman to lure a merchant seaman worth a legendary fortune.

A decoding expert tangles with enemy spies.

Bill Elliot emulates his idol William S. Hart in the superior western Topeka. Elliot plays the archetypal Good Bad Man, hired to kick the crooked element out of a small town. A hard-drinking, hard-living man, Elliot entertains thoughts of taking over the town himself for the benefit of his own gang. After several reels of soul-searching, Elliot decides to honor his promise to clean up the town for its decent citizens. Evidently director Thomas Carr rented a camera crane for this Allied Artists production, since the camera performs remarkable calisthenics, the kind not normally seen in a medium-budget western.

A cattle buyer, a federal agent and a newswoman snip a railroad plot.

A cowboy heads for the town where his father was murdered to find out who was responsible.

When Butch Taggart escapes prison, the Marshal sends Lightning Morgan to find him and his hidden gold. He finds the map to the gold on Taggart's boot. Joe Laikon and his men are also after the gold and they overpower Morgan, get the map, and head for the treasure. But Morgan and Tod Grant are soon on their trail

A little girl living on an isolated ranch claims to have formed a bond of friendship with a pure white, "wild" stallion. The horse is well known in the area, almost legendary, and supposedly vicious. Is she just making it up, or is she telling the truth? If it's real, isn't it dangerous for her with a "killer" horse? Or is the horse as vicious as he's been portrayed?

A wounded archaeologist crawls into the camp of three kindhearted cowboys. When the cowboys bring him to a nearby trading post, he's murdered after he lets slip a secret about a hidden cave. Investigating his death, Ken and his friends encounter a land dispute between a pair of neighboring ranches, an arrogant German baron and a mysterious shack that houses a great secret.

Two episodes of the TV series "Wild Bill Hickok" edited together and released as a feature film.