The USS Neptune, a nuclear submarine, is sunk off the coast of Connecticut after a collision with a Norwegian cargo ship. The navy must attempt a potentially dangerous rescue in the hope of saving the lives of the crew.

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.

Characters from different backgrounds are thrown together when the plane they're travelling on crashes into the Pacific Ocean. A nightmare fight for survival ensues with the air supply running out and dangers creeping in from all sides.

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.

After discovering a passenger ship missing since 1962 floating adrift on the Bering Sea, salvagers claim the vessel as their own. Once they begin towing the ghost ship towards harbor, a series of bizarre occurrences happen and the group becomes trapped inside the ship, which they soon learn is inhabited by a demonic creature.

The story of the WWII project to crack the code behind the Enigma machine, used by the Germans to encrypt messages sent to their submarines.

Barents Sea, August 12th, 2000. During a Russian naval exercise, and after suffering a serious accident, the K-141 Kursk submarine sinks with 118 crew members on board. While the few sailors who are still alive barely manage to survive, their families push for accurate information and a British officer struggles to obtain from the Russian government a permit to attempt a rescue before it is late. But general incompetence are against all their efforts.

When Russia's first nuclear submarine malfunctions on its maiden voyage, the crew must race to save the ship and prevent a nuclear disaster.

A rogue submarine captain pulls together a misfit crew to go after a sunken treasure rumored to be lost in the depths of the Black Sea. As greed and desperation take control on-board their claustrophobic vessel, the increasing uncertainty of the mission causes the men to turn on each other to fight for their own survival.

When a covert mission to rescue a kidnapped CIA operative uncovers a chilling plot, an elite, highly trained U.S. SEAL team speeds to hotspots around the globe, racing against the clock to stop a deadly terrorist attack.

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.

Stranded in the open sea after a fatal accident, a young woman and her two friends are rescued by a fishing vessel's captain, unaware that the ship harbors a chilling secret.

A spacecraft is discovered at the bottom of the Pacific Ocean, presumed to be at least 300 years old and of alien origin. A crack team of scientists and experts is assembled and taken to the ocean floor to investigate. However, the ship is not as it seems and when a giant perfect sphere is discovered in the cargo bay, things begin to fall apart.

Ethan Hunt and team continue their search for the terrifying AI known as the Entity — which has infiltrated intelligence networks all over the globe — with the world's governments and a mysterious ghost from Hunt's past on their trail. Joined by new allies and armed with the means to shut the Entity down for good, Hunt is in a race against time to prevent the world as we know it from changing forever.

A pair of young vacationers are involved in a dangerous conflict with treasure hunters when they discover a way into a deadly wreck in Bermuda waters.

Russian and British submarines with nuclear missiles on board both vanish from sight without a trace. England and Russia both blame each other as James Bond tries to solve the riddle of the disappearing ships. But the KGB also has an agent on the case.

In 2047, a group of astronauts are sent to investigate and salvage the starship Event Horizon which disappeared mysteriously seven years before on its maiden voyage. However, it soon becomes evident that something sinister resides in its corridors.

Captain Glass of the USS Arkansas discovers that a coup d'état is taking place in Russia, so he and his crew join an elite group working on the ground to prevent a war.

Seasoned deep-sea divers battle the raging elements to rescue their crewmate trapped hundreds of feet below the ocean's surface.

A deep sea submersible pilot revisits his past fears in the Mariana Trench, and accidentally unleashes the seventy foot ancestor of the Great White Shark believed to be extinct.