Chris and Martin are determined to prove to Aviva that there's more to crocodiles than their reputation as scary brutes. They use an egg disguise, created by the young inventor, to infiltrate a crocodile nest for an insider's look at the challenging journey of the infant crocs. They also discover the importance of heat in the life cycle of the croc and that heat can even move from one object to another by a process called conduction.

The Kratt brothers are taking Aviva's submarine prototype out for a test drive when the vehicle gets sucked into a battle between a Sperm whale and Giant squid, spiraling down into the depths. Martin and Chris want to follow, but their damaged vehicle can't take that kind of pressure. So Aviva develops whale and squid Creature Power Suits and the intrepid explorers venture where no sub has gone before.

After a young aardvark accidentally becomes a stowaway in Chris's backpack, the Wild Kratts team sets off on a "door to door" search to return him to his home burrow. Along the way, they discover how aardvarks manipulate earth materials to alter landscapes and learn the incredible (and valuable) service this amazing animal provides to all the burrow-living creatures of Africa.

While on a mission to discover the secret of the Draco lizard's gliding abilities, Martin and Chris uncover an evil plot devised by villainous fashion designer, Donita Donata, who has been capturing these amazing creatures to make them part of her new Fall collection. It's the Wild Kratts team to the rescue using what they know about gliding and gravity!

Aviva miniaturizes Chris and Martin for a fascinating underground mission to meet earthworms and "dig up" the answer to the mystery of why worms come above ground when it rains. But they have to hurry, as they soon realize that life as a worm is full of dangers at every turn. Along the way they learn that wet objects can be changed by heating and cooling and that the worm's unique environment helps them stay moist.

On a kayaking expedition in Australia, the brothers encounter one of the world's most unusual creatures: a platypus mother with her eggs. But unscrupulous endangered animal chef, Gourmand, plans on adding the platypus eggs to his menu. Chris and Martin must harness the special electromagnetic "sixth sense" of the platypus to save the eggs. They realize that animals use their senses to find out about their surroundings and themselves, and different senses give different information.

Martin and Chris are on a mission in the Arctic to discover just how animals move around in different environments. Their new knowledge of both buoyancy and traction comes in handy when they discover that the dastardly Zach Varmitech has kidnapped a Walrus calf and a Polar bear cub. The Wild Kratts team will do whatever it takes to return the baby animals to their mothers!

When the Wild Kratts creature adventurers accidentally break a beaver dam, they must lend a hand to help the beaver family rebuild it and restore the pond ecosystem for all the creatures who live there. They observe how the beavers make marvelous, complicated structures blocking the flow of water down a stream. Through building these dams, this remarkable animal single-handedly transforms the landscape, creating massive wetlands and homes for a huge variety of wildlife.

Using Aviva's newest invention, the Butterflier XT, the miniaturized Kratt Brothers embark on the most incredible insect voyage in the world Ð the Monarch butterfly's astounding 2,000 mile migration to their secret forests in Mexico. Along the way, the gang experiences harsh storms, dangerous predators, and other hardships of the insect migration as they investigate one of the most unusual animal life cycles on the planet.

While on an adventure to discover the toughest animal in Africa, Chris and Martin uncover the amazing symbiotic relationships between bees, the Honey guide bird and the Honey badger, a bond that the Wild Kratts team uses to foil the evil plans of Chef Gourmand.

Martin and Chris are in the middle of a friendly competition to find Smallmouth and Largemouth bass when they encounter Gavin, a "Wild Kratts Kid" who is fishing. Before they can join him, Zach Varmitech arrives and challenges them all to a fishing contest. The whole team must use their knowledge of bass biology and species diversity to win the tournament fair and square.

It's time for the annual Wild Kratts Firefly Picnic so the brothers head off into the forest to find some fireflies to join the fun. But evil fashion designer, Donita Donata, has been capturing all the amazing flashing insects to use for a sparkly, one-of-a-kind dress. Will the Wild Kratts team be able to save the firefly population? They'll have to use everything they know and learn about bioluminescence and fireflies to save the day!

Chris and Martin are out to investigate why the walrus looks so weird, but then find out that Zach Varmitech has kidnapped an entire herd to mine precious pearls for Donita Donata's fashion line. The Wild Kratts team figures out that walrus' have incredible powers that have a lot to do with how they look. They must employ the walrus' super suction and other amazing powers against Zach to save the herd and return them back home to their Arctic domain.

When Martin and Chris assist the Tasmanian Wildlife Service in tagging endangered Tasmanian devils, they discover that Zach Varmitech has begun kidnapping them to create a ferocious new Zachbot. And, to make matters worse, a malfunction in Chris' Creature Power Suit has Chris transforming erratically and uncontrollably into a Tazzy Devil and back again! As the Wild Kratts team works to foil Zach's horrible plot, Chris experiences what being a Tasmanian devil is all about and the gang discovers that a healthy ecosystem contains both predators and scavengers.

When Martin accidentally knocks the Creature Power Suits into a deep Arctic trench, Aviva takes the brothers to search for them in her brand-new Octopod submarine. But after the gang encounters what seems to be a very strange new species of underwater octopus, they figure out that something has gone very wrong in the deep sea.

When Chris and Martin locate an amazing water-walking Basilisk lizard in Costa Rica, they try to replicate its actions in order to learn how this rare lizard is able to walk on water. They discover that by using its wide feet, churning its legs to create water pockets and keeping up a certain speed, the Basilisk is able to run on water in order to escape from predators.

The brothers come across a lone baby elephant and bring him back to the Tortuga HQ for safety until they can find his mom. But they learn how mischievous baby elephants can be and get more than they bargained for when it almost destroys the Tortuga! As they rush to get the baby elephant home, the WildKratts team realizes that animals have different structures that serve various functions in growth and survival.

The Wild Kratts team is on an important mission to unearth why Rhinos are mysteriously disappearing from the African Savannah. They soon discover that Zach Varmitech has been kidnapping them to create a new super Rhino Dozers so the creature adventurers devise a plan to rescue them - and it just might work!

The Kratt brothers are itching to fly with the world’s fastest animal, the Peregrine falcon, which can hit top speeds of 240 mph. But their efforts are side-tracked when the rest of the Wild Kratts team challenges them to find the falcon in the city instead of in the wild, and Chris’ Creature Power Suit is accidentally activated with Pigeon Powers ! But then they discover that Zach is sending his Zachbots to clean off a building that has a peregrine falcon nests with chicks! Martin and Chris must activate their Peregrine falcons powers and harness the force of gravity to pull off a high flying creature rescue!

Martin and Chris are absorbed in a hilarious competition to discover who is the best acorn planter, blue jays or gray squirrels, when a strange Creature Power Suit malfunction transforms Martin into an acorn and grows him into an Oak tree! Chris activates the squirrel powers of his Creature Power Suit, but gets waylaid by a bobcat and goshawk, and the Aviva, Koki, and Jimmy can’t find them. It’ll take some animal-loving Wild Kratts kids to get them out of this mess!

When Chris and Martin meet up with a mob of Red kangaroos, they get their car keys stolen by a joey and have to figure out how to get them back from the tricky little guy. As they jump into the life of the roos to search for the missing keys, the brothers realize that animals live in different kinds of social groups and they have important behaviors that keep the group together and safe. But everybody wonders just how safe this search has become, when Chris and Martin get tangled up in a kickboxing match with the dominant male and caught in the middle of a dingo attack.

Martin and Chris must protect a young koala stranded in the Australian Outback, and help him get back to his Eucalyptus forest habitat. On their quest to return the adorable animal home, the brothers discover lots of interesting facts about how animals are specialized to their own environment, and with some tips from an intrepid desert dweller called the thorny devil, they must survive the desert crossing and bring the koala home.

Chris and Martin announce that no creature or vehicle can travel as fast over the rough and tumble African savannah as the cheetah. Aviva takes the challenge and declares she will build a ground racer that can run even faster than a cheetah. Of course Zach wants to prove that he is a better inventor than Aviva and joins the race. The team, inspired by the cheetah, “revs up” to explore the different functions required for speed build a cheetah racer and win the race.

Martin and Chris are on a mission to uncover the secret life of the mysterious Great White Shark. They use Aviva’s incredible Remora Rocketsub to "stick with" a female shark and soon learn that the giant predator of the sea actually has lots of challenges to contend with and that she could help them discover something that no one has ever seen before - the birth of Great White shark pups. But when Gourmand sniffs around looking for ingredients for his Shark Fin Soup recipe, the Wild Kratts team must help rescue their new friend.

While exploring why some animals mimic the looks of others, Martin and Chris encounter a cheetah cub and its mom. But before they know it, evil fashion designer, Donita Donata, ‘cat-naps’ the startled mom right in front of their eyes. The Wild Kratts team springs into action on a rescue mission before Donita adds the momma cheetah to her new fall line. Martin discovers that the cheetah cub has unexpected powers of mimicry, and it’s ability to mimic the ferocious honey badger - is the key to foiling Donita and protecting the cheetah.

Chris and Martin are unpacking from an adventure and are surprised when a Wolf pup pops out of their bags. They have no idea where the little guy came from and must retrace their steps in order to return him back to his pack. They experience that wolves are a very social animal with a close pack structure and frequent visual and audio communication among individual members. With this knowledge and wolf-powered Creature Power Suits the bros are able to fend off a hungry cougar and finally return the pup to his wolf pack.

Martin and Chris challenge themselves to ID as many hawks, eagles, owls, falcons and vultures as they can. But the evil endangered species chef, Gaston Gourmand has his own plan for the raptors and has been capturing them all in his quest to find the tastiest bird wing. Will the Wild Kratts team succeed in rescuing the raptors before they become Gourmand’s next gourmet delicacy? They’ll have to use everything they know about classification and birds of prey to round up the raptors and return them to where they belong - living free and in the wild!

When a little brown bat crashlands into a plate of Jimmy Z’s famous brownies, Martin and Chris out set out to convince Aviva, Jimmy Z and Koki that bats are nothing to be afraid of. With bat activated Creature Power Suits, the bros follow join their new friend on a nocturnal fly about, and the entire crew must come to the rescue when the bat colony’s roost is destroyed by a lightning bolt. In the end the Wild Kratts crew “goes batty,” as they gain a new appreciation for bat ecology, predators and insects and echolocation, and learn to love bats.

As they prepare for a creature costume party, the Wild Kratts team begins to notice all sorts of strange things happening in the Tortuga HQ. Jimmy is sure there is a ghost or monster living with them, but the Kratt brothers are convinced it’s some kind of creature. When the gang sets out to discover who is causing all the trouble, they discover that certain animals gravitate towards human habitation because it provides food and protection from predators.

When Martin’s and Chris’ Creature Power Suits unexpectedly get jammed in Proboscis monkey mode and the top monkey of the troop is injured protecting a youngster from a crocodile, the Kratt brothers find themselves stepping into the injured monkey’s role. While Aviva nurses the monkey back to health, Chris and Martin must keep the troop together and soon discover the important communication function of the proboscis monkeys strangest feature – his huge, droopy, bulbous nose! They uncover some of the different methods animals utilize to communicate important information to each other.

Aviva wants to build a food web for the African savannah, so she devises a game and Martin and Chris accept her challenge! They will each start as a blade of grass and climb to the top of the food web in a game of “Power Suit Creature Tag.” As they play, the brothers boost their knowledge of the complex relationships between predators and prey as well as the differences between herbivores and carnivores.

When a miniaturized Chris gets covered with pollen and ends up sticking to a bee, he’s off into the remarkable world of the pollinators. Martin, Aviva, and the rest of the creature explorers must find Chris in an adventure that uncovers the amazing delivery system of plants and their animal partners. They learn that plants use animals to help them make their seeds through a process called pollination.

The Wild Kratts crew are playing badminton on the African savanna when a high jumping wildcat called a caracal steals the birdie. And this is no ordinary birdie – it is Aviva’s precious family heirloom. As they rush to get back the treasure from an elusive, leaping caracal cat, they learn how the caracal’s musculature is specifically designed stalking and leaping – a perfect example of the concept of "form for function." Inspired by this, Aviva perfects the caracal power for the Creature Power Suit and leaps off to retrieve Aviva’s special birdie and rescue some caracal kittens who get into trouble along the way.

Chris and Martin get caught in the middle of a Zebra stampede, and when the dust clears, a lone baby Zebra is left behind. The Wild Kratts must find the young zebra’s herd and return him to his mom. Along the way, they learn the secrets of patterns in the creature world and how the zebra’s stripes are critical to a special defense called “confusion camouflage.”

While Chris and Martin are off searching for the endangered Orangutan in the deep forests of Borneo, back at the Tortuga HQ Aviva, Koki and Jimmy get carried away swinging on vines and their muscles so get incredibly sore that they can’t do anything. The bros attempt to rush back with the first aid kit but a huge orangutan keeps tossing them back into the forest. Here they learn that orangutans use a special leaf and chew it into a lotion to ease muscle soreness, and return with this orangutan medicine to help their friends. But Zach has sent his Zachbots to fell the trees of the orangutan forest, and Martin and Chris activate the orangutan powers of the Creature Power Suit to rid the forest of saw-armed Zachbots, and save the orangutans rainforest home.

When Aviva reveals that dancing is just not her thing, Chris and Martin set out in the New Guinea forest to inspire her to give dancing a try by uncovering some of the greatest dancers in the creature world – the Birds of Paradise. They soon find that the male birds use their showy bright feathers and extraordinary dances to display to potential female mates that they are healthy and strong. But when the gang gets caught up in Donita’s plan to capture these fashionable birds for her latest clothing line, Aviva must put her dancing skills on the line to save them.

The Kratt brothers’ sub loses power while they are exploring the strange landscape of the ocean depths and they are trapped on the ocean floor of the deep sea. Aviva must figure out how to harness the energy from the deep sea’s hydrothermal vents in order to save the brothers and return them to the surface. The Wild Kratts team learns all about the amazing process of chemosynthesis and how deep sea creatures transform toxic chemicals into energy. With a little help from the Yeti crab Martin and Chris are able to capture the this energy and use it to restart the amphi-sub and return to the surface.

There’s a mystery to be solved, as the Wild Kratts team wonders how a Gecko lizard climbs up smooth surfaces and can even climb upside down. The gang uses their Miniaturizer to shrink down and discover it’s all about physics: all objects have electrical charges that attract one another and the gecko’s marvelous toe pad structure charges so much that they can walk on surfaces as smooth as glass. But in the meantime Zach has stolen their Miniaturizer and now imprisons them in a glass terrarium. Martin and Chris activate the new Gecko Powers of their Creature Power Suits and must retrieve the Miniaturizer before Zach shrinks all the animals in the creature world.

The Kratt brothers secretly “borrow” Aviva’s half finished night vision goggles to go in search of a mysterious nocturnal creature. But when the unstable goggles stop working, the brothers find themselves taken in by the nocturnal society of the tarsier. As they investigate, the Wild Kratts team discovers that nocturnal creatures only come out at night and learn that eyes help a creature see by collecting the light that comes from objects all around. But when the tarsier troop is in danger of losing one of their own, Chris and Martin must tap into their newfound understanding of nocturnal living and help the troubled tarsier family.

It’s Aviva’s birthday, and Chris and Martin decide to collect shed porcupine quills to make a beautiful necklace as a gift. As they tag along with an African Crested Porcupine, they discover that animals have different ways and even some highly specialized features to defend themselves from predators. For example, porcupine quills are modified hairs, designed by nature into a deadly defense. The Kratt brothers must use this amazing defense to protect the porcupines from Zach’s latest animal collection scheme.