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

The Prairie is set at the time of the Louisiana Purchase. Hoping to find their destiny in the new territory, the Bush Family heads southward in a covered wagon. Sharing the family's numerous dangers and hardships are Ellen Wade (Lenore Aubert), sole survivor of an Indian attack, and army mapmaker Paul Hover (Alan Baxter). Cousins Abiram (Russ Vincent) and Asa (Jack Mitchum) duke it out over Ellen's affections

With his assistant, Laura Hutchinson, Dr. David Conway develops a device to advance the fledgling science of earthquake prediction. After forecasting a large trembleor that will rock California within twenty-four hours, Conway cannot persuade the Governor to act. When the prediction proves true and further tests indicate that there are more quakes to come, Conway and Laura seek to perfect their device. Subsequent tests deep within Carlsbad Caverns discover an unknown element—E-112—that is responsible for the earthquakes and threatens to destroy the globe if it ever reaches the surface. The team determines that with only four weeks until Armageddon, the race is on to neutralize the killer element before it takes a devastating toll.

When a plane carrying the daughter of a millionaire crashes in an African jungle, two pilots set out to collect the reward. They discover that she has become the goddess of a primitive tribe. An insurgent witch doctor and fierce wild animals make escape from the jungle difficult for the trio.

A facially disfigured and mentally unhinged man wreaks his revenge on those he blames for his condition.