An American scientist up to no good (as usual) by creating the half-pterodactyl, half-barracuda: Pteracuda. When the creature inevitably escapes, it's up to Sharktopus to stop him.
Present-day survivors of a sunken naval vessel capture a Russian sub, only to find themselves stranded on an island filled with deadly, prehistoric creatures
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.
When scientists exploring the Amazon River stumble on a “missing link” connecting humans and fish, they plan to capture it for later study. But the Creature has plans of his own, and has set his sights on the lead scientist's beautiful fiancée, Kay.
A young linguist named Milo Thatch joins an intrepid group of explorers to find the mysterious lost continent of Atlantis.
A top secret drilling platform in the Gulf of Mexico raises a dormant alien creature from the depths. Once loose, the creature goes on a murderous rampage.
Dead bodies are being found in New York harbor. The police have no clues nor suspects until Nick and his colleague realize the killer is a giant octopus. Everybody, especially the police captain, refuses to believe Nick's story, and soon the harbor will be filled with boats for the 4th of July celebrations.
A nuclear leak creates a mutant Slithis sea monster, which terrorizes the variety of pets, winos, and hippies who hang around Venice, California.
A marine biologist is doing research on a fish farm when she encounters several strange occurrences. Along with the brutal deaths of two teenagers, all signs point to the deep fjord; can there be more to the depths than the eye can see?
Navy Commander Alan Roberts is assigned to lead an expedition to Little America in Antarctica to investigate reports of a mysterious warm water inland lake discovered a decade earlier. His helicopter and its small party, including reporter Maggie Hathaway, is forced down into a volcanic crater by a fierce storm. They find themselves trapped in a lush tropical environment that has survived from prehistoric times.
Marine atomic tests cause changes in the ocean's ecosystem resulting in dangerous blobs of radiation and the resurrection of a dormant dinosaur which threatens London.
A mysterious hypnotist reverts his beautiful assistant back into the form of a prehistoric sea monster that she was in a past life.
This menacing monster yarn stars James Van Der Beek as government scientist Dan Leland, who's sent to investigate reported sightings of a giant squidlike beast that's put the entire population of a fishing village on edge. Though Leland starts his journey confident that this sea creature with an insatiable appetite is the stuff of old legends, a string of horrific occurrences soon begins to change his mind.
A crook decides to bump off members of his inept crew and blame their deaths on a legendary sea creature. What he doesn't know is that the creature is real.
James Murphey is a rugged cryptozoologist, who thirty years earlier, during a trip to Loch Ness, Scotland, had a fatal encounter with the fabled "Nessie" creature that killed his father, and left James with deep facial scar. Twenty years later, James is hunting for Nessie, when his search leads him to the sleepy town of Pike Island, Ashburn, on Lake Superior. Hiring Josh Riley as his guide, James and Josh bond over their mutual scientific interests and deceased fathers, while James tries to convince Josh's mother, Sheriff Karen Riley, that the 60-foot plesiosaur is killing and breeding.
Giants Mollusks are released from the earth by an earthquake and start killing people.
A biological experiment in Florida goes awry. The result: 8-foot long land crabs which roar loudly and kill everything in sight.
When a mad scientist begins kidnapping wrestlers and extracting their spinal fluid to create a race of Gill Men, two cops call in Batwoman to investigate. But when her mission leaves the scientist horrifically scarred, he seeks revenge.
Scientists pursuing the mysteries of the deep are threatened by a beautiful girl who seems to have returned from the dead and by a prehistoric sea creature that dwells in the deadly Bermuda Triangle.
Three gorgeous but deadly hired killers, Beretta, Blondie and Snowball, hole up in a small beachside community to keep a low profile. But this town has a dark secret. The local old sea baron, Joseph, tries desperately to warn them to never go into the water. But these crazy vixens listen to no one, especially no crazy assed old fool. So the Kraken awakes! Now, along with Joseph and his beautiful grand daughter, Hannah, they must fight for their lives against this furious creature of the deep as the sea rises in a tidalwave of blood.