David Williams is on the hunt for a silent killer that lurks in Papua New Guinea's countryside. He catches and extracts the venom from the ferocious Papuan taipan, risking his life to create low-cost antivenom for the Papuan people.

Snake expert Bruce Means is on the hunt for a kingsnake he discovered 40 years ago in the Apalachicola National Forest. A fellow snake scientist wants to name the snake for Bruce -- but do Bruce's kingsnakes still exist in the wild?

Jungle Geoff lives on an island, canoes to work, swings from trees, and wrestles caimans -- all for science. But one natural wonder eludes him. He longs to observe the unique strike of the eyelash pit viper when it is least expected: during daylight.

An exotic jungle journey to the Congo basin takes snakeman Zoltan Takacs into the realm of the Baka Pygmies. Here he'll tap the Baka's ancient ways to help capture the infamous Gaboon viper.

In the early 1990s, herpetologist Jenny Daltry had nearly completed her research on the Malayan pit viper in Southeast Asia when war prevented her from entering Cambodia. Now she returns to finish her study of the forbidden vipers.

It's a slithering, writhing, all-consuming environmental disaster. Boas have invaded Mexico's Cozumel Island with a vengeance. Where did the conquering constrictors come from? Ace wrangler Jesus Rivas finds an unlikely answer.

Jim Harrison travels to St. Lucia in search of one of the most feared snakes in the Americas: the fer-de-lance or lancehead viper. He believes its venom has properties that could help stroke or heart disease victims. Join the quest for the killer cure.

Snake wrangler Sean Thomas uses a mighty meerkat to help him bust problem snakes. However, Sean's latest mission requires him to leave his furry buddy behind, to confront one of the fastest, most fearsome snakes of all: Africa's black mamba.

In the depths of an African lake lurks a mysterious serpent, a large and deadly snake about which little is known. Now a young Bolivian wrangler will unlock the secret life of the spectacular banded water cobra.

A snake that can fly? Biomechanics snake wrangler Jake Socha wants to learn more. He travels to Singapore to capture rarely seen gliding snakes and obtain high-definition footage of their wingless flight.

Is the deadly habu worthy of its fearsome reputation? On his first journey out of Australia, passionate snake protector Brian Bush searches for the Japanese habu and seeks to defend its honor.

The Reevesby Island black tiger snake is one of the most lethal terrestrial snakes in the world.

Australian snake wrangler Brian Bush journeys to Tasmania, land of the copperhead, to study the cannibalistic snakes. When hungry, these snakes will eat each other -- and their young.