The film begins with a high school senior, Josh, who is stunned to see that he unknowningly won an MTV contest to see Carmen Electra, and it was actually his sister, Jen, who won the contest and invites everyone they know in their school. Josh and his classmates arrive on an isolated island (which is later revealed to be located in the Bermuda Triangle) where they have an enormous party, but Josh, who has been dumped by his girlfriend, is not really into the fun. Despite having his best friends Andy and Stack with him, he is angry that Jen, who wanted her brother to have an awesome time, scammed him.
A small town, desperate to recover from hard economic times, is under threat when the voracious snakehead fish mutate, surviving previous chemical attacks. The fish transform from pests to predators when human growth hormones are dumped into the local lake in the hopes of reviving the local fishing industry. Thriving on the hormones, the Snakehead fish grow to monstrous proportions, devouring everything within reach. Capable of moving and eating on land, they are forced to leave the now barren lake in a desperate search for food - animal, vegetable or human. In a race against time, the local Sheriff and biologist Lori Dale, try to save the Sheriff's teenage daughter and her friends, along with the town itself, from being eaten alive.
Some years have passed since the events of the first film. Val has moved away and married Rhonda, while Earl has squandered his fortune on a failing ostrich ranch. He is approached by Carlos Ortega, who informs him that graboids are killing his workers at his oil field in Sonora, Mexico. Earl initially refuses his assistance, but Ortega's taxi driver, Grady Hoover, convinces Earl to change his mind and joins Earl in the hunt, with the oil company paying Grady full fees for his services, as well. Upon arrival in Sonora, Earl meets geologist Kate Reilly, and her assistant Julio, who are scientifically investigating the graboids.
Moll, Lora, and Belvera, the Elias sisters, are at odds again. Belvera seeks the secret power of their ancestors, tiny triangular power units that transform the sisters' small daggers into powerful swords. She steals the three units from Infant Island but is thwarted by Fairy Mothra, Moll and Lora's pet, and fails to retrieve the proper triangle for her sword (each power unit will only work for a specific sword). Moll and Lora end up with a unit that transforms Moll's sword.
In September 1942, Captain Yamagami (Susumu Kurobe) is ordered to rendezvous the Yamato with the Combined Fleet that is gathering at the Truk Islands (aka Chuuk Islands) in Micronesia, a key strategic point in the South Pacific. With beautiful clear blue skies above and surrounded by coral reefs below, this South Seas paradise became a strong base for the Combined Fleet and the front lines of the naval war; a place where many fierce battles were fought. Decades later, the sea bed surrounding the Truk Islands is still littered with the remains of more than 60 warships and airplanes.
A United States oil company loses a drill, intended to do work in the Arctic, while flying over a Canadian lake. Company employee Sean is contacted to go to Canada to find it; however, he has to cancel plans to take his son to Walt Disney World. Although his son, Mac, is disappointed, he agrees to go with his father to Canada. Once in Canada, they meet a local native named Custer who helps Sean and another employee on their mission.
Pas facile tous les jours d’être un super héros. Surtout au Japon. Pour tenter de regagner un peu de popularité, Dai Sato, héros japonais dont le pouvoir est de grandir a volonté décide d’organiser un reality show le mettant lui-même en scène afin de sensibiliser l’opinion sur la difficulté de sa tâche.
An archaeological party explore some caverns underground. Dr. Campbell and Dr. Hughes are the two leaders of the archaeological expedition, and get separated. While Dr. Hughes finds an alien corpse with a fossilized diamond, Dr. Campbell finds hieroglyphics at the cost of the party except for Hughes and himself. Two years later, Campbell and his assistant Holly are digging up the bones of Yonggary, a gargantuan dinosaur 50 times the size of a Tyrannosaurus Rex. Out of nowhere, people slowly are being killed around the site. While Holly is working, Dr. Hughes, who has been legally dead for 2 years, goes to Holly and tells her to stop the dig. Dr. Campbell comes into the tent and sends Dr. Hughes off. Holly quits the expedition when another "Accident" occurs. In the town bar, Dr. Hughes finds Holly and takes her back to her Hotel room to tell her why he thinks the bones of the Dinosaur, which he calls Yonggary, are going to bring the end of the world. After explaining, Holly and Hughes go to the site to stop Campbell but it is too late and Aliens resurrect Yonggary. After Yonggary's first appearance, the Army comes in and takes Holly and Campbell to an army base when Yonggary is dispatched by the aliens again. The army sends choppers after Yonggary, but he destroys them. Yonggary is then sent to the city (which was thought to be New York by fans, but is actually an all CGI Los Angeles near Korea Town) and does some damage, where some jets attack him. Then Yonggary is transported to a power plant where he is attacked by rocket pack soldiers. During the fight, Hughes and Holly find out that the diamond on Yonggary's forehead is the device giving the aliens control of Yonggary. Yonggary is transported back into the city, where the remainder of the soldiers destroy the diamond on his head. Enraged, the aliens send down their own monster, Cycor. Yonggary and Cycor battle, with Yonggary winning. The following morning, Yonggary went to sleep and sent to an uninhabited island where Yonggary can adjust to normal life and become a hero.
Professor Scott Kinney is an American geologist monitoring a local volcano when the Supergator, a Phobosuchus recreated from fossilized, preserved DNA escapes from a secret bio-engineering research center/laboratory. Along the way, it eats thirteen people, including two lovers, three drunken teens, three models, two tourists and a fisherman. It also eats Alexandra Stevens and Ryan Houston.
The film takes place in Tokyo in 2003, where two reporters, Hana Izumi and Hyuga Kanata, have arrived to document unusual seismic disturbances that have been picked up around Tokyo. The disturbances are originally thought to be aftershocks left over from a supposed massive earthquake on the Kanto Fault that occurred two years previously, causing hundreds of thousands of casualties and several hundred billion dollars in damage(possibly referencing the real-life Fukuoka earthquake or the Miyagi earthquake), although careful analysis of the evidence suggests otherwise.
Young archaeologist Dr. Valerie Cammon (Polly Shannon) and her colleague Dr. Kim (Philip Moon) go by ship to a volcanic island in the Mediterranean sea. While she seeks relics in a cave, a seaquake sinks their ship without survivors. At about the same time all archaeologists except for Dr. Cammon get eaten by the re-awakened ancient Lernaean Hydra.
Le Méga Shark revient mais il va devoir faire face à un crocodile géant : le Crocosaurus. Attaquant beaucoup d'humains, les deux monstres se battent en duel. L'amiral Calvin et l'agent Hutchinson décident alors d'envoyer le lieutenant Terry McKormick et le chasseur Nigel Putman mettre un terme aux attaques des deux monstres.
Eight teenagers, including Brady (Mark McLachlan), Claire (Caitlin Martin), Duncan (Chris Solari), Kit (D. W. Reiser), Annabelle (Julie Mintz), Sunny (Summer Knight), Foster (Rhett Jordan) and Hubs (Greg Wayne) are going on a weekend boat trip on a remote lake in Southern California for spring break. As the group are about to depart on their boat, they are warned by Sheriff Bowman (Harrison Young) to be sensible and keep out of danger. After a day of partying, the group have a bonfire, where Kit tells them a local story about how in the early 1900s, 96 years ago, a hotel owner named Harlan featured a crocodile named Flat Dog at his hotel. He goes on to say that Harlan eventually sets up a shrine to Flat Dog, believing her to be an avatar to the ancient Egyptian crocodile god (Sobek), creating a cult that worshiped the crocodile. The town eventually ran Harlan away because of his heathenism and torched his hotel years later when Kit was a kid. Close by, two local fishermen destroy a crocodile nest, only for them both to be attacked by Flat Dog, who devours them both.
Local resident and adventurer Burt Gummer returns to his hometown of Perfection, Nevada after an excursion-turned-Graboid/Shrieker hunt in Argentina. Eleven years have passed since the original Graboid infestation, and the town's preventative equipment for tracking Graboid activities has for the most part fallen into disrepair thanks to native residents Miguel, Nancy, and Mindy Sterngood. Walter Chang's market has been taken over by his niece Jodi, and the town has gained a new resident, Jack, who creates mock-attack tours for visiting tourists. One afternoon, during one of Jack's tours, his assistant is eaten by an actual Graboid. Jack, Mindy and Jack's customers barely manage to escape to warn the town, and Burt determines there are three Graboids in the area.
The film begins with two researchers, Frank and Tillman on a rubber tube raft until Tillman is dragged into the water and killed by a crocodile. In Aroostook County, Maine, Frank shows Sheriff James Riley the severed body parts of Tillman. James, Frank and Fish and Wildlife officer Emma Warner venture to Black Lake to investigate. After stopping the boat, Emma jumps into the lake to see if there’s anything, eventually to find Tillman’s severed head.