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.