A marine biologist, a dolphin trainer, a research scientist, and a local sheriff try to hunt down a large sea monster, a shark/octopus hybrid, that is devouring swimmers and fishermen off a south Florida coast.
When a science experiment goes horribly wrong, gigantic fish gain appetites for human flesh.
A scientific expedition to Loch Ness runs into trouble when the group leader is killed in a mysterious diving accident. Soon after, when the unorthodox Professor Howell shows up to take over as leader of the group, more strange incidents and attacks start to occur. While Howell and TV producer Elizabeth Borden are busy investigating the source of the attacks, the body of an enormous sea creature washes up on the lake's shore.
The heat of a meteor crashing into the lake incubates a prehistoric egg, which grows into a plesiosaur-like monster that terrifies the community.
Little coastal town is being terrorized by deadly Barracudas.
A fanatical animal rights activist releases giant pythons into the Everglades, believing the wild animals should be set free. When they start decimating the native animal population, an over-zealous park ranger feeds experimental steroids to wild alligators so they can fight back. The giant pythons and gargantuan alligators go on a killing spree, and it is now left up to the two feuding women to put aside their differences to put a stop to the creatures and the destruction.
Inspired by an infamous online video clip of a son beating his mother, a television crew from Belgrade comes to a remote Serbian village to shoot a report on violence against women. Inquiring with the locals about the protagonists of the video, they encounter a local expert on supernatural phenomena and learn about a ritual of summoning an ancient demon, naprata. Wanting to capture the first authentic footage of something otherworldly, they change their plans. Excited by the prospective success of the recording, they defy the old saying that "it's better to believe than to be convinced."
In Sector 7, an underwater oil field located south of Jeju Island, Hae-jun is working as a marine equipment manager on an oil prospecting ship called Eclipse. Joining the crew later is Jeong-man, a former colleague of Hae-jun's father, assigned to Eclipse as captain. Though his job is to oversee the withdrawal of the ship, he suggests conducting some drilling one last time.
A futuristic underwater sea-lab is having problems with a UFO that's parked between them and a nearby deep ocean trench. As they investigate, they attract the unwanted attention of a dangerous creature who puts the scientists and crew in danger.
After chomping through the fish population, thousands of starved lampreys begin attacking the citizens of a sleepy lake town, and the community scrambles to stay alive.
The giant monster Raiga returns, rising in Atami Harbor and attacking the city. A second kaiju, Ohga, soon joins the chaos, and the two monsters clash, destroying large sections of the city. Defense forces launch two new weapons, the giant tank Kamikaze and the drill tank Gokumei, to meet the the monster invasion head on. But as the beasts work their way to Tokyo, will they be enough to stop the monsters from laying waste to the city?
A hybrid creature - half piranha and half anaconda -- attacks a low-budget horror movie crew on location near her nest when her egg is stolen. Now they must outrun and kill the deadly piranhaconda as well as stop the mad scientist who stole the egg - before they all become dinner.
Six college students go into the wetlands to find their missing professor after he takes off in search of the mythical and deadly monster known as the 'Swamp Freak.'
Scientists surgically transform the Creature into an air-breather, but being able to live on land is not enough to make him comfortable with humans. Enraged, he turns his wrath on anyone who comes near as he desperately tries to return to the deep-water world where he truly belongs.
The film, a parody of the novel Twenty Thousand Leagues Under the Sea by Jules Verne, follows a fisherman, Yves, who dreams of traveling by submarine to the bottom of the ocean, where he encounters both realistic and fanciful sea creatures, including a chorus of naiads played by dancers from the Théâtre du Châtelet. Méliès's design for the film includes cut-out sea animals patterned after Alphonse de Neuville's illustrations for Verne's novel.
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.
A giant octopus, whose feeding habits have been affected by radiation from H-Bomb tests, rises from the Mindanao Deep to terrorize the California Coast.
Four teenage girls go on a diving adventure to explore a submerged Mayan city. Once inside, their rush of excitement turns into a jolt of terror as they discover the sunken ruins are a hunting ground for deadly great white sharks. With their air supply steadily dwindling, the friends must navigate the underwater labyrinth of claustrophobic caves and eerie tunnels in search of a way out of their watery hell.
After a new cannery introduces scientifically augmented salmon to a seaside town in the Pacific Northwest, a species of mysterious, mutated sea creatures begin killing the men and raping the women.
In a Brazilian village infested with piranhas, Nanã and Mel are fast growing into adolescence as they dream of ways of protecting themselves against a seemingly inescapable violence. When a mysterious body appears tangled in a fisherman's net, they learn what might be their ultimate protection.