Rick Morgan, an American engineer who runs a mine in East Africa, is approached one day by his friend Jim Scott, who needs someplace to store canisters of toxic waste. Unfortunately, a spill occurs a short time later, resulting in deaths and Morgan having to leave the country. A year later, he is approached by a government agent looking for a missing supply of potentially hazardous poison, which in truth hides something even more valuable.
In 1890 Minnesota Christine Powell is the scheming head of the Powell dynasty, the richest mining empire of the era. But the Powell mine deposits are diminishing. The Mesabi range represents a whole new productive area but the rights to mine there are held by a young geological engineer, Kyle Ramlo. The latter reaches an impasse when he needs money to continue his experimentation with open-pit mining and goes to Miss Powell for financing. She displays great interest in both his inventive mining method and in him personally but secretly plots to destroy him and take over his Masabi rights. The gullible Ramlo falls into clutches while the girl he really loves, Cathy Norlund, tries desperately to open his eyes to Christine's scheme.
In 2176, a Martian police unit is sent to pick up a highly dangerous criminal at a remote mining post. Upon arrival, the cops find the post deserted and something far more dangerous than any criminal — the original inhabitants of Mars, hellbent on getting their planet back.
An honest marshal in a corrupt mining colony on Io, Jupiter's sunless third moon, is determined to confront a violent drug ring even though it may cost him his life. After his wife angrily deserts him, he waits alone for the arrival of killers hired by the company to eliminate him.
Tensions mount in an Andalusia mining town between local Spanish workers and their British employers.
The Australian Aborigines (in this film anyway) believe that this is the place where the green ants go to dream, and that if their dreams are disturbed, it will bring down disaster on us all. The Aborigines' belief is not shared by a giant mining company, which wants to tear open the soil and search for uranium.
A series of strange accidents plaguing a city located near the mine. Two people were pulled through the funnel, which formed after the collapse of tunnels under the lake. Geologist Nina Thiemann discovers that the mine tunnels are insecure and unstable. A woman with an expert in the field of explosions and a father, a former miner, descend into the ground, hoping that they will prevent catastrophe
In the year 3000, man is no match for the Psychlos, a greedy, manipulative race of aliens on a quest for ultimate profit. Led by the powerful Terl, the Psychlos are stripping Earth clean of its natural resources, using the broken remnants of humanity as slaves. What is left of the human race has descended into a near primitive state. After being captured, it is up to Tyler to save mankind.
After being thrown out of her home, a young woman decides to disguise herself as a man to survive the ruthless Wild West.