Between 1979 and 1983 over 200 livestock were torn apart on the moors of England. Despite the efforts of armed marines, no predator was ever found and the attacks continue to this day. Eyewitnesses allege that a strange "black beast" is the culprit, but new video evidence could have answers to the mystery.

In 1976, in upstate New York, several police officers witnessed an animal that they can't explain. They describe it as a "large creature, 7 to 8 feet tall, walking like a gorilla hunched over, making a sound like a woman screaming." Over thirty years later sightings are continuing and these police officers have agreed to be put to the test. Meanwhile, MonsterQuest teams up with local researchers and renowned wildlife experts on the trail of the Monster of Whitehall

Does a giant prehistoric creature lurk in Lake Champlain? The locals nicknamed it Champ. Generations of eyewitnesses rumor to have seen the creature, a dinosaur-like animal, 15-25 feet long most resembling the extinct plesiosaur. Examine the mystery surrounding Lake Champlain as specially designed cameras search for the monster. Existing photographic evidence will also be put to the test.

Does Canada have its own Bigfoot? Owners of a fly-in fishing cabin report attacks by an unknown creature. Can DNA tests on blood and tissue from the alleged beast reveal its true identity? The test results will surprise you. The best evidence available will be examined, from pictures and video, to hair and bones. Scientists will be brought in to tell viewers what the evidence reveals. Discover the truth behind these beasts and take a scientific look at legendary creatures around the world.

Is the legend of the Kraken, a tentacled beast as large as a whale, based on myth or a real creature? Take an expedition to the Sea of Cortez, Mexico where fishermen regularly claim to encounter large schools of giant squid. Watch as squid expert Scott Cassel uses lures with built-in cameras in an attempt to video a Kraken-sized squid 1,000 feet below the ocean. What Cassel and his team discover will make history.

Native Americans have long revered huge birds called Thunderbirds. There was a rash of giant bird sightings in Illinois, Texas and Alaska back in the 1970's. A giant bird with a 15-foot wingspan allegedly attacked a small child in Illinois. Could there really be a giant bird or is it mass hysteria? Take a scientific journey and follow the many eyewitnesses' accounts across the country and examine the most compelling evidence.

Bigfoot has been sighted in Washington State more than any other place on earth. Join an all-female expedition as they try to lure a Bigfoot within range of their cameras. The 1967 Patterson footage will be reexamined using digital microscopes that could reveal details that might prove if the beast is real or a hoax.

Mans best friend is many times our last line of defense. But something strange is killing Fido. In 2006, a rash of pets were killed in Maine and Minnesota by a beast locals describe as a mutant. But there are more than just stories, a creature was hit by a car and the body was found. This strange looking creature will be DNA tested to see what it really is. And two MonsterQuest winter expeditions will be launched to trap other dog killers still at large.

Attacks by mountain lions make headlines across the U.S. But some people say they are seeing something else...large black cats. From Texas to Minnesota to West Virginia, MonsterQuest will follow the eyewitness accounts and physical evidence of these demon cats. Pictures and law enforcement encounters prove a big black cat is out there but what is it? While they resemble a mountain lion, there is no such thing as a black mountain lion. Bones from a carcass, eyewitnesses claim was a huge black cat, will be put to the DNA test.

The movie Jaws scared an entire generation off of ocean beaches...but there are monsters lurking in freshwater lakes and rivers too. Are these just fish stories or are they real? From the Artic Circle to the Amazon, MonsterQuest will launch expeditions to find the biggest and nastiest giant fresh water fish. From catfish large enough to swallow kids whole to trout as large as a boat. Scientists will deploy giant lures and underwater cameras in a search for monster fish.

The vast swamps of Louisiana and Florida hide many animals...including a beast locals call The Swamp Creature. At 7 ft tall, with red hair, and a rotten egg smell this beast has been nicknamed The Skunk Ape. For the first time, bloodhounds will be used to track the elusive creature. And sexual ape pheromone chips will be used to guide the bloodhounds to their prey.

In 2006, the NY times revealed a devilish plan by Soviet dictator Josef Stalin to create monsters by crossing humans with apes. But was it real? And how far did he get? This MonsterQuest scientific journey will travel to Russia to find out. We will also look at the many other efforts, both by man and Mother Nature, to combine the strength of apes with the intelligence of man. This is a real Frankenstein story& from head transplants in the U.S. to cases of ape on human attacks. Man and Apes are not as different as you might think.

For decades cameras have been capturing images of a flying, torpedo-like creature. So fast it cannot be seen with the naked eye. Some think it is a military weapon, others believe it may be a creature from another dimension. But just what is it? This MonsterQuest scientific journey will use super high speed photography, physics and even a wind tunnel experiment to shed light on a creature simply referred to as Rods.

A MonsterQuest expedition will deploy researchers and the latest technology into the jungle, searching for evidence of a creature natives describe as half man, half ape.

This episode was a rebranding of a previous history channel program, it tells the story of Giganto.

Eyewitnesses in Wisconsin and Michigan report seeing a tall hairy man - beast some describe as a dogman...a centuries old legend based on myth, not a real animal. But what are they seeing? MonsterQuest will deploy professional hunters and trackers in an area with recent sightings, armed with a tranquilizer gun. And for the first time eyewitness accounts will be put to the test, using polygraphs and hypnosis&the results will astonish.

Investigation into the reports of gigantic swine like the 800 lb "Hogzilla" shot in Georgia in 2004.

Investigation into the 2007 Bolivia, North Carolina reports of strange attacks on livestock and pets by a creature that feeds on blood.

Investigation into the supposed existence of ghosts at the famous Lizzie Borden axe-murder house in Massachusetts.

Investigation into sightings of Bigfoot-like creatures throughout the state of Ohio.

Investigating reports of huge, man-eating snakes 50 feet or more in length in Venezuela. Also pet pythons that escape, multiply and grow huge in the Florida Everglades.

Fossils of giant rats have been discovered by archaeologists, but are they returning? Follow along as Monsterquest examines reports that these large creatures are inhabiting modern sewers and that some are man-eaters.

Investigation of the Chupacabra, or "goat sucker". A mysterious bipedal, blood-draining creature said to be responsible for a rash of unexplained animal killings in Puerto Rico and Texas.

Native American history is full of "Hairy Man" stories and cave art that date back over a thousand years. Did Native Americans know the truth behind the Bigfoot legend? An expedition along the Klamath River into reservation land will use state of the art technology to search for something locals don't doubt is real. With unprecedented access to Native American stories and recent sightings, MonsterQuest examines this creature that is both feared and revered.

Most people agree that vampires are fictional creatures, but throughout history and even today, there have been cases of people who thirst for blood. These "real vampires" believe that in order to survive, they must feed on the life-force of others. In this episode, we investigate these living vampires to find out if there is a physical reason behind their cravings. Can science separate the fact from the fiction surrounding these "creatures of the night"?