Chris and Martin want to prove to Aviva that crocodiles aren't just scary brutes. They use a disguise to infiltrate a crocodile nest for a look at the challenging journey of the infant crocs.

Aviva's sub prototype gets sucked into a battle between a sperm whale and giant squid.

After a young aardvark accidentally becomes a stowaway in Chris's backpack, the Wild Kratts team sets out to return him to his home burrow.

While on a mission to discover the secret of the Draco lizard's gliding abilities, Martin and Chris uncover an evil plot made by a villainous fashion designer.

Chris and Martin are miniaturized for an underground mission with earthworms.

While kayaking in Australia, Martin and Chris see a platypus mother with her eggs.