
Adventurer Sean Duggan heads to some of the most remote places on Earth in search of mysterious creatures -- from land-prowling fish to giant predatory reptiles -- in "Natural Born Monsters." When he unearths the creatures, he investigates how they have adapted to extreme weather conditions to survive in their often-dangerous environments and how weather has shaped the animals themselves. Duggan often enlists the help of local experts to locate and investigate the creatures and get the information he seeks.

Sean is in Australia, tracking down a legendary beast, the Megalania; the Megalania is a gigantic ancient reptile that is rumored to still live in the remote microclimates of Australia's Greater Blue Mountains.

Although hunted into extinction nearly a century ago, recent sightings suggest that the ferocious Eastern Cougar has resurfaced in the United States.

Over 2,200 Gray Wolves are estimated to roam the forests of northern Minnesota; several fatal attacks have been the result of the wolves acting against their instincts.

Sean scours the Yucatan Peninsula in search of the deadly Jaguar that survived the same apocalypse that wiped out the Mayan civilization.