Two federal agents battle a gang that hijacks trucks carrying materials vital for the security of the country and sells them to foreign powers.

Jim Trask, former sheriff of Abilene, returns to the town after fighting for the Confederacy to find everyone thought he was dead. His old friend Dave Mosely is now engaged to Trask's former sweetheart and is one of the cattlemen increasingly feuding with the original farmers. Trask is persuaded to take up as sheriff again but there is something about the death of Mosely's brother in the Civil War that is haunting him.

White settlers plan to defy the agreement between the government and the Comanche to mine for silver on Comanche lands, while scout Jim Bowie tries to keep the peace in the territory.

Billy used to be a great boxer, but he's settled into a hardscrabble life that revolves around drinking, training horses, and the one bright spot in his existence — his young son, T.J. Although Billy has had custody of T.J. since his wife, Annie, left the family years ago, her return prompts a new struggle for the former fighter. Determined to hold on to his son, Billy gets back into the ring to try and recapture his past success.

A group of strangers come across a man dying after a car crash who proceeds to tell them about the $350,000 he buried in California. What follows is the madcap adventures of those strangers as each attempts to claim the prize for himself.

A ranch owner fires his ranch hands and brings in women to replace them. The owner's daughter wants the male hands back and comes up with a plan to do it.

When the unscrupulous Carlos Manning discovers that an old Spanish land grant recently unearthed will leave a huge section of California real estate to the heirs of Don Quantero, he employs Mel Donovan and his killer henchmen to murder them all. That will leave Manning as the sole heir to millions. However, Delores Quantero tumbles to this plot and enlists the aide of two-fisted reporter, Cliff Roberts to save all her relatives

Jean Evans of an international wildlife foundation, who is known to Africa as 'the Panther Girl' because of her bravery in jungle living, stumbles on a plot by a mad scientist to frighten the natives out of a diamond-laden district by chemically growing crayfish to giant size, and enlists the aid of a game hunter friend to prevent a monster rampage and bring the culprits to justice.

Dr. John Meredith has been driven from civilization by the criminal activities of his twin brother Bradley Meredith. With his infant daughter, he settles in the African jungle, where his ability to cure the native ills has resulted in his virtual control of the Masamba tribes, who possess vast diamond mines coveted by a gang of crooks.

A white girl raised by Indians sets out to find out who murdered her adoptive parents.