S4 E1 • Stars of the Tides

When the Kratt brothers argue over which of them gets to keep a beautiful seashell, Aviva organizes a contest to settle the matter. Chris and Martin will need to survive and race to the finish line in one of the harshest habitats on Earth: the intertidal zone. To do so, they must use the Creature Powers of animals that live in this constantly changing environment.

Première diffusion : 29 juillet 2015

S4 E2 • The Last Largest Lobster

A seagull drops one of Martin's Creature Power Discs into the ocean, and when the Kratt brothers dive in after the disc, they encounter an enormous lobster. Aviva programs Lobster Powers for Chris and Martin, but when the Kratt brothers try them out, only Chris's Creature Power Suit activates as an adult lobster. Martin's Power Suit malfunctions, turning Martin into a microscopic lobster larva. The Wild Kratts Kids begin a search for Martin, but Chris must protect "the last largest lobster" from Chef Gourmand.

Première diffusion : 29 juillet 2015

S4 E3 • A Creature Christmas-Part 1

It's Christmastime, and the Wild Kratts are taking a break from creature adventuring to throw a Christmas party. However, before they can open their presents, the Wild Kratts receive alerts from Wild Kratts Kids that Zach Varmitech, Donita Donata, and Chef Gourmand are capturing baby animals from around the world. The Wild Kratts cut their holiday celebration short and set off to rescue their creature friends from the villains, but the team's first rescue attempt fails miserably. Can the Wild Kratts still manage to save their animal friends, or will Zach, Donita, and Gourmand succeed in whatever plan they've concocted?

Première diffusion : 25 novembre 2015

S4 E4 • A Creature Christmas-Part 2

After their failed first rescue attempt, the Wild Kratts are again trying to pull off a creature rescue and save their baby animal friends from Zach Varmitech, Donita Donata, and Chef Gourmand. The team finds out that the three villains have gathered in North America. The Wild Kratts travel to where the villains have met up and finally discover their enemies' horrible scheme: the animals captured by the villains have been turned into Christmas ornaments by Donita, and the creatures are now hanging on Zach's robotic Christmas tree. The Wild Kratts manage to free the animals, but the villains use traps disguised as Christmas presents to capture the team. Zach, Donita, and Gourmand then take all of the Wild Kratts' technology and leave the team marooned in the middle of the Arctic Ocean. Will the Kratt brothers somehow be able to get their Creature Power Suits back, use them to defeat the villains, and keep Christmas from being ruined for both the Wild Kratts and their animal friends?

Première diffusion : 25 novembre 2015

S4 E5 • Box Turtled In!

When Jimmy Z accidentally lands the Tortuga on the Miniaturizer, the ship and the Wild Kratts crew are Miniaturized. A coyote then carries the box turtle-sized Tortuga away from the Miniaturizer, and the Wild Kratts must return to the Miniaturizer and get back to normal-size. However, predators and cars pose a threat to the Tortuga, just like they do to real turtles.

Première diffusion : 25 avril 2016

S4 E6 • The Other Martins

When a bird called a purple martin keeps dive-bombing Chris, Chris complains to Aviva, Koki, and Jimmy Z about it. At first, the team is confused, thinking Chris is talking about his brother, Martin. When they discover Chris is talking about a bird, the Wild Kratts decide to creature adventure with both the purple martin and a member of the weasel family called the pine marten. Martin is delighted to hang out with animals that share his name, but Chris is unhappy due to a series of unfortunate events that happen to him, one of which is a squirrel stealing his Creature Power vest. Martin must save the day by using Pine Marten Power to get Chris's Creature Power vest back from the squirrel.

Première diffusion : 26 avril 2016

S4 E7 • Sea Otter Swim

Jimmy reveals to the other Wild Kratts that he's not a very good swimmer. To help Jimmy learn to swim better, the Kratt brothers take Jimmy to meet a friend of theirs-a sea otter named Coach. While Jimmy practices swimming and diving, the Wild Kratts learn about the features that make sea otters such good swimmers.

Première diffusion : 27 avril 2016

S4 E8 • Animals Who Live to be 100 Years Old

Martin introduces the rest of the Wild Kratts team to his pet fruit fly, Juice. However, since fruit flies only live for a few weeks, Juice soon dies, saddening the Wild Kratts.

Première diffusion : 28 avril 2016

S4 E9 • Spirit Bear

Chris, Martin, and Aviva kayak to an island to look for black bears. When they get there, Aviva catches a glimpse of a white bear; however, the Kratt brothers don't believe Aviva and tell her that there are no polar bears on the island. But when the white bear reappears, Chris and Martin realize that the bear is no polar bear-it's a spirit bear, a variety of black bear that sometimes has white fur. Meanwhile, a new villain, Paisley Paver, arrives on the island, planning to pave it and build a mega storage facility. To stop this new enemy from destroying the bears' home, the Kratt brothers will need to use the incredible Creature Powers of the black bear.

Première diffusion : 29 avril 2016

S4 E10 • Panda Power Up!

The Wild Kratts travel to China to conduct a population survey of one of Aviva's favorite animals: the giant panda.

Première diffusion : 19 juillet 2016

S4 E11 • Pangolin Rescue

While on the African savanna, the Wild Kratts discover a ground pangolin. This animal, like other pangolin species, has one of the most incredible defenses in the creature world: overlapping keratin scales that make pangolins resemble artichokes on legs.

Première diffusion : 20 juillet 2016

S4 E12 • Golden Snub Nosed Monkey Man

The Wild Kratts travel to China looking for snub-nosed monkeys: primates capable of surviving in snowy mountains. However, the team soon must search for Martin, who not only gets lost in the mountains along with a baby snub-nosed monkey, but is transformed into a Yeti-like creature when his Snub-Nosed Monkey Creature Power Suit malfunctions. The other Wild Kratts aren't the only ones looking for Martin, either-Zach Varmitech plans to capture the Yeti and show it to people in exchange for money. Unfortunately for Martin, he is the closest thing to a Yeti in the mountains.

Première diffusion : 21 juillet 2016

S4 E13 • Red Panda Rescue

Chris finds a lost red panda cub in the bamboo forest of China. The Wild Kratts wonder what taxonomic family this cute creature belongs to-Koki thinks the red panda is a bear, Jimmy Z thinks it's a canine and a type of fox, Aviva thinks it's a member of the weasel family, and Chris thinks it's related to raccoons. However, Martin reveals that the red panda is actually in a family of its own-Ailuridae. The Wild Kratts team plans to return the red panda cub to her mother, but Zach Varmitech arrives, traps Aviva, Koki, and Jimmy in an energy net, and steals the red panda cub, planning to give her to Donita Donata as a present for the fashion designer's birthday. Chris and Martin must use their Creature Powers of two Chinese animals-the snub-nosed monkey and the giant panda-to rescue the red panda cub from Zach and get her back to her mother.

Première diffusion : 22 juillet 2016

S4 E14 • The Colors of China

While Chris and Martin are looking for cool creatures in the bamboo forest of China, they encounter golden pheasants. The vivid colors of the male pheasant cause the Kratt brothers to wonder why golden pheasants-and all the other amazing animals of China-are colored the way they are.

Première diffusion : 25 juillet 2016

S4 E15 • Creatures of the Deep Sea-Part 1

The entire Wild Kratts team uses their new submarine to explore the deep sea in search of undiscovered species. However, Chef Gourmand, planning to invent new seafood dishes, is using a Varmitech Industries submarine to capture deep-sea animals.

Première diffusion : 23 novembre 2016

S4 E16 • Creatures of the Deep Sea-Part 2

The Wild Kratts continue their exploration of the deep sea. Now, they have a new mission: to rescue the deep-sea fauna from Chef Gourmand's plot to make seafood out of them. A battle with Gourmand ensues, but soon everyone must quickly escape from the area when the villainous chef causes a chain of underwater volcanoes to erupt.

Première diffusion : 23 novembre 2016

S4 E17 • Liturgusa Krattorum

The Kratt brothers find out that a scientist has discovered a new species of mantis in Peru and named it Liturgusa krattorum, after them. They decide to creature adventure with this unique insect.

Première diffusion : 16 janvier 2017

S4 E18 • Snowy Owl Invasion

The Wild Kratts hear about snowy owls being sighted in areas far south of their usual Arctic habitat

Première diffusion : 17 janvier 2017

S4 E19 • Puffin Rescue

A rogue wave hits the Tortuga, separating the members of the Wild Kratts team from each other. When Martin is stranded on a remote island, he finds several puffins, giving him the idea to use Puffin Power to find and rescue the other Wild Kratts.

Première diffusion : 18 janvier 2017

S4 E20 • Eel-lectric!

When the Tortuga crashes in the Amazon rainforest, the ship loses power when its electrical systems are damaged. However, Chris and Martin are happy to be in one of the most biologically rich habitats on Earth, and they set out into the rainforest to creature adventure. The Kratt brothers soon find a creature that may be able to solve the Tortuga's electricity problem: the electric eel.

Première diffusion : 19 janvier 2017

S4 E21 • The Mystery of the Two Horned Narwhal

Chris and Martin are arguing with each other about which is better, horns or antlers, when they get a call from Wild Kratts Kid Nua about a whale with a unique horn-like tusk: the narwhal. The Wild Kratts travel to the Arctic to investigate the structure and purpose of the narwhal's tusk. But when the Kratt brothers find an Inuit carving depicting a narwhal with two tusks, the Wild Kratts decide to find out whether the two-tusked narwhal is real or just a myth.

Première diffusion : 20 janvier 2017

S4 E22 • Archerfish School

One day, while the Wild Kratts are in an Asian mangrove swamp, Chris is practicing archery. However, since his aim isn't very good, he and Martin decide to check out the greatest archer in the creature world: the archerfish. The Kratt brothers learn about the archerfish's creature powers that allow it to hit small prey with jets of water. Aviva programs Archerfish Powers for Chris and Martin, and just in time too-Donita Donata is capturing animals for her new line of fashion, and the Kratt brothers will need to use the Creature Powers of the archerfish to stop the evil fashion designer.

Première diffusion : 10 avril 2017

S4 E23 • This Orca Likes Sharks

After a run-in with a dangerous bull shark in a South American river, the Kratt brothers find a bottle with an old map inside. The map shows the travels of a legendary orca that supposedly specializes in eating large sharks. To find out if the story of the shark-eating orca is true or not, Chris and Martin join a pod of orcas and use the newly upgraded Dolphin Decoder to communicate with them. The Wild Kratts soon discover that orcas are powerful, intelligent predators that can prey on almost any other animal in the sea. But when a great white shark threatens an orca calf, the shark is eaten by none other than Old Sharktooth, the legendary shark-hunting orca!

Première diffusion : 11 avril 2017

S4 E24 • Baby Tooth and Kid Musky

The Wild Kratts travel to the Arctic tundra, where two very different but interconnected creatures live: the thick-haired, sharp-horned muskox and its main predator, the pack-hunting Arctic wolf. Chris wants Aviva to make an Arctic Wolf Creature Power Suit, but Martin wants a Muskox Power Suit. Both Kratt brothers set out across the tundra to find their preferred animal, each trying to convince Aviva to program their chosen Creature Power Suit. However, when a pack of Arctic wolves threatens a muskox calf, Chris and Martin try to choose sides in the conflict, but realize that there really are no bad guys in a predator-prey relationship-the prey are trying to defend themselves, but the predators must kill or die of starvation.

Première diffusion : 12 avril 2017

S4 E25 • Cheetah Adopted

The Wild Kratts need to resupply the Tortuga, but Chris and Martin want to creature adventure on the African savanna. Before traveling to a nearby town to buy supplies, the rest of the team drops the Kratt brothers-who promise not to call for help or ask Aviva for new Creature Powers-off on the savanna. But when Chris and Martin find Spot Swat the cheetah cub living with a family of warthogs, they must use their Creature Powers of African animals to get Spot Swat back to his mother, Blur, without having to contact Aviva, Koki, and Jimmy Z.

Première diffusion : 13 avril 2017

S4 E26 • Musk Ox Mania

While the Kratt brothers are being charged by an angry rhino on the African savanna, they decide to use a harpy eagle feather from Chris's creature souvenir collection to activate Harpy Eagle Powers and fly out of harm's way. However, Chris forgot his souvenir collection on the Arctic tundra during the events of "Baby Tooth and Kid Musky". To find the valuable collection, the Wild Kratts travel to the Arctic and search for the collection using the Creature Powers of the muskox. However, the team will have to hurry, because Zach Varmitech is also after the creature souvenirs.

Première diffusion : 14 avril 2017