Wildlife expert Casey Anderson heads to the most remote corners of Alaska looking for proof that a beast called the Mega Bear exists. His journey takes him to Kodiak and Afognak islands where he meets eyewitnesses, goes bear tracking and comes face-to-face with a giant bear.
Wildlife expert Casey Anderson heads to the backwoods of Texas and Louisiana to hunt for a gigantic wild hog.
Wildlife expert Casey Anderson heads to Mexico to investigate an increase in reports of vampire bats biting humans.
Wildlife expert Casey Anderson heads to Victoria, Australia, to investigate reports of an unknown predator. He meets with gold miner Dennis Wright to learn more about local sightings and Dennis' own encounter with an animal that should be long extinct, a marsupial lion. For more than a million years, the marsupial lion was Australia's largest predator, but it was supposedly hunted to extinction by aboriginal tribes more than 10,000 years ago. However, Dennis is certain that he saw one, and Casey joins him on a nighttime stakeout.
After hearing that man-eating tigers are preying on villagers in the outskirts of Nepal's national parks, wildlife expert Casey Anderson heads to the country's earthquake-ravaged capital, Kathmandu. Casey prepares for his tiger search by visiting big cats at the city's Central Zoo and approaching the cage of Bhangay, a tiger placed in the zoo after attacking humans. To better understand tiger behavior, Casey conducts an experiment with Bhangay, engaging the animal in a stare down. The tiger suddenly roars with anger, and Casey knows what he can do to throw a tiger off its game.
Wildlife expert Casey Anderson heads to Mozambique to track down a rogue elephant that's been terrorizing villagers. He meets with an elephant behavior expert to determine what's behind the animal's rage and uncovers a vital clue to identifying the aggressive bull.
Wildlife expert Casey Anderson has long been fascinated with Africa's Nile crocodiles, marveling that these perfect killing machines have barely evolved in 85 million years! After receiving reports from Zimbabwe crocodile expert David Zondani that a giant renegade crocodile named Bizmark is terrorizing villages along the Zambezi River, Casey packs his bags and heads to Africa.
Spurred by reports of a massive snake attacking people in Colombia's Amazon Basin region, wildlife expert Casey Anderson travels to Bogota to begin his investigation. Since the decline of the country's violent drug cartels, scientists have been venturing into once-prohibited areas of the Amazon jungle and identifying new animal species, both alive and extinct. Casey meets a paleontologist from the team that discovered fossils of the Titanoboa, a 50-foot, 2,500-pound mega-snake that shares characteristics with today's anaconda. Scientists believe that somewhere in the Amazon could be the link between them -- a giant and aggressive snake the locals call Yacumama.
Wildlife expert Casey Anderson travels to Bolivia to investigate sightings of a giant mammal that resembles the long-extinct ground sloth. If the animal has somehow escaped extinction and is now emerging from the Amazon basin, the locals may have much to fear.