Two sisters on Mexican vacation are trapped in a shark observation cage at the bottom of the ocean, with oxygen running low and great whites circling nearby, they have less than an hour of air left to figure out how to get to the surface.
A civilian oil rig crew is recruited to conduct a search and rescue effort when a nuclear submarine mysteriously sinks. One diver soon finds himself on a spectacular odyssey 25,000 feet below the ocean's surface where he confronts a mysterious force that has the power to change the world or destroy it.
After an earthquake destroys their underwater station, six researchers must navigate two miles along the dangerous, unknown depths of the ocean floor to make it to safety in a race against time.
Underwater deep-sea miners encounter a Soviet wreck and bring back a dangerous cargo to their base on the ocean floor with horrifying results. The crew of the mining base must fight to survive against a genetic mutation that hunts them down one by one.
A special ops unit commandeer a commercial research vessel and its submersible to locate a mysterious item at the bottom of the Yellow Sea. When an explosion causes the sub to overturn and take on water, the crew begins to understand that not all of them will escape and a fight for survival ensues.
The crew of an experimental underwater nuclear base are forced to struggle for their lives when their explorations disturb a creature who threatens to destroy their base.
Sundquist and Eidsvold play the two deep sea divers, who agree to do a quick unscheduled dive before taking their Christmas vacation, to help an oil company who's got a oil-valve caught in a trawl. The dive is to take only 5 minutes, and the divers will get a nice bonus. But things go wrong. The diving bell gets tangled in the trawl, and while trying to hoist up the bell, they tear asunder the oxygen tanks. Suddenly the bell is stuck, and the crew is unable to get it up. Caught in a diving bell at the bottom of the sea, rapidly running out of air, both the divers and the crew on the surface are racing against time to find a solution; how to get the two men up ALIVE!
A young orphan boy working as a tank cleaner is trapped in a water tank by someone. He struggles for his life for four days in this tank full of water.