A murderous baboon escapes from a laboratory and roams the research building, and begins to kill some teenagers who are also in the building playing a Dungeons-and-Dragons type game.
A man who recently completed rebuilding a townhouse becomes obsessed with a rat infestation until it becomes an interspecies duel.
When the body of a man is found completely destroyed in the swamps in Louisiana, the medical investigator Sam Rivers is assigned to investigate the murder. He travels with the biologist Mary Callahan to the location where the victim lived in a floating house and he meets his family and friends. They find that Chinese snake-heads genetically engineered that belong to a wealthy hunter are attacking and killing the locals. While the group fights to survive, the hunter Jeff arrives with his team to hunt the predators.
The heat of a meteor crashing into the lake incubates a prehistoric egg, which grows into a plesiosaur-like monster that terrifies the community.
A country family of five take in charming cousin Julie, whose parents recently died in a car crash, though teenaged daughter Rachel grows suspect that she has an alternative agenda; one that possibly includes witchcraft.
Man-eating crocodiles return to the lake as two males and one aggressive female crocodile, which is protecting her nest, wreak havoc on the locals.
American professor John Holden arrives in London for a conference on parapsychology only to discover that the colleague he was supposed to meet was killed in a freak accident the day before. It turns out that the deceased had been investigating a cult lead by Dr. Julian Karswell. Though a skeptic, Holden is suspicious of the devil-worshiping Karswell. Following a trail of mysterious manuscripts, Holden enters a world that makes him question his faith in science.
A deadly nest of spiders lurk in the attic - And the nest is about to be awoken by a news reporter and her colleagues
A group of Japanese scientists goes to a small isolated village in the Thai mountains. A legend tells that the place is cursed, but also that a mysterious jewel would have been placed a long time ago in a sanctuary. After a long expedition, they finally discover a temple, located not far from a huge waterfall ... from which emerges a gigantic crocodile, the guardian of the treasure.
When flesh-eating piranhas are accidentally released into a summer resort's rivers, the guests become their next meal.
A Serbian émigré in Manhattan believes that, because of an ancient curse, any physical intimacy with the man she loves will turn her into a feline predator.
In the Australian outback a vicious wild boar kills and causes havoc to a small community.
A group of college friends' Thailand adventure turns deadly when they become trapped in submerged caves with a dangerous predator. As oxygen runs low, past conflicts emerge in their desperate fight for survival.
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.
Jason Crockett is an aging, grumpy, physically disabled millionaire who invites his family to his island estate for his birthday celebration. Pickett Smith is a free-lance photographer who is doing a pollution layout for an ecology magazine. Jason Crockett hates nature, poisoning anything that crawls on his property. On the night of his birthday the frogs and other members of nature begin to pay Crockett back.
Frank and Katrin return to Frankfurt to stop the scientist responsible for unleashing the plague of genetically mutated vermin upon the city.
Juvenile delinquents are sent to a small British island after a fellow prisoner's death, where they must fight for survival.
Mary Ryan enlists the help of a detective, Jack Craig, to find her missing twin sister Vicky. They follow her trail to the New Orleans swamps where they encounter voodoo priestess Olivier and her zombie henchman.
A family in Africa is besieged by a group of lions, driven to desperation by the drought.
A savvy and free-spirited surfer is abducted by a shark-obsessed serial killer. Held captive on his boat, she must figure out how to escape before he carries out a ritualistic feeding to the sharks below.