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 Aviva, to infiltrate a crocodile nest for an insider's look at the challenging journey of the infant crocs and their mom. Science Concept: Heat can be produced in many ways, and can move from one object to another by a process called conduction.

When 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 the incredible (and valuable) service the aardvark provides to all the burrow-living creatures of Africa. Science Concept: Aardvarks manipulate earth materials and alter landscapes.

While on a mission to discover the secret of the Draco lizard's gliding abilities, Martin and Chris uncover an evil plot by fashion designer, Donita Donata. She has been capturing these amazing creatures with a plan to make them part of her new Fall collection. It's the Wild Kratts team to the rescue! Science Concept: Gliding, Gravity.

Aviva miniaturizes Chris and Martin for an underground mission with earthworms, in search of the answer to the mystery "Why do worms come above ground when it rains?" But they have to hurry, as they soon discover that life as a worm is full of dangers at every turn. Science Concept: Wet objects can be changed by heating and cooling. If a worm is left in the hot sun, their skin will dry up and they will die. Worms need to stay wet and their environment helps keep them that way.