Alan Armstrong, aka Spy Smasher, battles a Nazi villain known as The Mask, who heads a gang of saboteurs determined to spread destruction across America.

A sea captain about to be hanged for a murder he didn't commit is rescued from the gallows by two of his crewmen. They head for the island of Pulinan, where they believe the real murderer--the captain's former partner--is hiding so the captain can clear his name. As it turns out, their troubles are only beginning.

White Eagle was raised by Indians after his father, a US army officer, was killed in an Indian raid. He believes that the Indians and the white settlers can live together and works towards that goal, but a gang leader who has his own reasons for not wanting peace between the two groups sets out to stir up as much trouble between them as he can.

An American secret agent travels to Africa to infiltrate a Nazi spy ring.

Walter Calvert (Davison Clark) calls upon his brother Henry (Davison Clark) at his eerie old house and demands a share of the family fortune, and threatens to kill Henry if he doesn't get it. A few days later Henry's car goes over a cliff and he is presumed dead. Bob Stewart (Robert Kent, a detective whom Henry asked to investigate the matter if he should die, starts his investigation and Duke Ellis(Tim Ryan, a newspaper reporter friend is with him. Bob meets the family at their mansion and questions Henry's sister, his half-brother, his nephew and his nephew's bride, and Ruth Allen (Amelita Ward), whose father was in business with Henry. Henry's brother Patton (Charles Middleton) and a shadowy figure known as The Voice (NO, not the Narrator)plan to kill all the relatives and divide the fortune. As the murder attempts multiply, Bob, Ruth and Duke endeavor to track down the masterminds and bring them to justice.

Girl looking for father who disappeared years before in a jungle, finds herself battling greedy civilized people and savages alike.

A mad doctor named Zanoff uses a drug to bring himself back from the dead after his execution in prison. Dick Tracy sets out to capture Zanoff before he can put his criminal gang back together again.

Western settlers are being driven off their homesteads and ranches by a combination of Indian raids and attacks by bands of mysterious outlaws. The government sends out famed Indian scout Kit Carson and army officer David Brent to investigate, and Carson discovers that a villain named Pegleg controls an outlaw gang called the Black Raiders, and is using them and the Indians to drive out the settlers so he can establish his own empire. He determines to set a trap to expose the identity of Pegleg while avoiding traps and ambushes that Pegleg is setting for him.

Filmed in the Sierra Nevada mountains near Sonora, California, this Universal serial is Universal's 40th sound-era serial. Eagle Scout Bruce Scott, leader of Martinsville Troop Number One, and his pack sets off in search of lost treasure and finds adventure.

Dick Tracy battles spies and saboteurs in his efforts to bring to justice the Stark gang, a criminal family led by the vicious Pa Stark.

Larry Munro has discovered a vein of platinum on his ranch. A group known as the Secret Seven has learned about it and plan to get the Munro Ranch. Kentucky Wade and his friends arrive to help Larry and are soon fighting off attempts on their lives by the henchman of the Secret Seven and the Indians they enlist by bribing them with rifles.

An expedition arrives on an uncharted jungle island to rescue the local natives, led by a jungle boy, from a volcano that is about to erupt.