Season 1
Episode: 1x01 | Airdate: Jan 12, 2007
Nick heads to cowboy country - southeast Arizona - in search of the horned lizard, a reptile with an amazing trick up its spiny sleeve. Armed with a high-speed camera, Nick finds a whole range of animals with spectacular defence mechanisms, but his target weird creature promises to deliver a literally eye-popping spectacle.
Episode: 1x02 | Airdate: Jan 19, 2007
Nick heads to Peru in search of the vampire fish, a parasitic animal associated with some particularly unpleasant tales.
Episode: 1x03 | Airdate: Jan 26, 2007
Nick travels the same Mendoza desert roads as Charles Darwin two centuries before, trying all his trapping tricks to find a 'Pink Fairy Armadillo'.
Episode: 1x04 | Airdate: Feb 2, 2007
Nick journeys to the Andes to seek out the giant 'saggy-skinned' Lake Titicaca frog, the world's largest aquatic frog.
Episode: 1x05 | Airdate: Feb 9, 2007
Nick journeys to India in search of one of world's biggest reptiles - the gharial crocodile.
Episode: 1x06 | Airdate: Feb 16, 2007
Nick is in the UK to seek out the elusive basking shark - a fish as long as a London bus and heavier than most elephants.
Episode: 1x07 | Airdate: Feb 23, 2007
In this programme Nick heads to Manitoba in Canada to track down the star-nosed mole, whose 22-tentacled nose enables it to find food at lightning speed.
Season 2
Episode: 2x01 | Airdate: Oct 5, 2007
Nick's quest takes him to Slovenia in search of a bizarre, sightless salamander. He descends deep into the mountains to find the proteus or olm, dubbed the 'human fish' because its skin resembles human flesh. Nick camps underground for three days in an attempt to experience this light-deprived world and the effect it has had on the olm's evolution.
Episode: 2x02 | Airdate: Oct 12, 2007
Nick travels to the remote jungles of south-east Asia to meet a very bizarre creature indeed - the tarsier, one of the tiniest primates on the planet, which bears an uncanny resemblance to the mythical gremlin.
Episode: 2x03 | Airdate: Oct 19, 2007
Nick heads to the United States in search of a creature with the claws of a bear, the jaws of a griffin and the biggest bite in the animal kingdom: the alligator snapping turtle.
Episode: 2x04 | Airdate: Oct 26, 2007
The giant Hellbender Salamander was Nick's childhood obsession. When he finds they are in trouble he is determined to find out why and do something about it.
Episode: 2x05 | Airdate: Nov 2, 2007
Nick is on a turbo-charged chase through Madagascar in search of chameleons - the so-called masters of disguise. Nick wants to find one of these 'invisible lizards' in order to bust a few myths and uncover the mystery surrounding this incredible lizard.
Episode: 2x06 | Airdate: Nov 9, 2007
Nick investigates stories of enormous catfish terrorising the UK and Spanish waters. He must now find out why it's public enemy number one.
Episode: 2x07 | Airdate: Nov 16, 2007
Madagascar's creepiest resident is the aye-aye. Nick must confront his fears and find out why it has become so feared by the local population.
Episode: 2x08 | Airdate: Nov 23, 2007
Nick is in search of a disguise artist - the mimic octopus, supposedly capable of an incredible 15 impersonations. But can it live up to the great claims?
Season 3
Episode: 3x01 | Airdate: Oct 28, 2009
Nick is in South Australia in search of an extremely rare sea creature - the leafy sea dragon. And his job is made much harder by its complex camouflage!
Episode: 3x02 | Airdate: Nov 4, 2009
Nick is in Mexico's Baja peninsula in search of the elusive mole lizard, which has evolved into a creature that looks part snake, part lizard and part earthworm.
Episode: 3x03 | Airdate: Nov 11, 2009
Native only to two lakes in central Mexico and nearly extinct in the wild, the axolotl is a salamander of scientific interest for its ability to regenerate most body parts.
Episode: 3x04 | Airdate: Nov 18, 2009
Nick calls in a leading mole expert for help as he travels to Australia's Red Centre to find one of the world's weirdest desert diggers, the marsupial mole.
Episode: 3x05 | Airdate: Nov 25, 2009
Nick travels to the Bornean jungle to find the world's only poisonous primate: the slow loris. It looks like a cuddly toy, but carries venom that can prove fatal!
Episode: 3x06 | Airdate: Dec 2, 2009
Nick goes in search of the prehistoric horseshoe crab as he attempts to find out how this living fossil has survived for so long - and why it's now in danger.
Episode: 3x07 | Airdate: Dec 9, 2009
Nick gets more than he bargained for when he goes in search of the awkward relation of the anteaters, the tamandua, witnessing behaviours never seen before in the wild.
Episode: 3x08 | Airdate: Dec 16, 2009
Nick heads to a group of islands in Panama where strange things have been happening. He hangs out with the pygmy sloth, and discovers a frog with an identity crisis.