Thanks to his sensitive nose, a baby elephant named Toothbrush sniffs out Chris and Martin after they've been climbing around in a bat cave. After learning more about what an amazing tool his trunk is, they help him get back to his herd. Jackie spots a garter snake while mowing her backyard and decides to leave a patch of grass unmowed so it will have some shade to hide in.

After admiring the camouflaged coats and amazing night vision of two visiting black jaguar cubs, Martin and Chris build a pair of "Eye-Spy goggles"—a contraption that lets them see the world as various animals do. Jackie replants the evergreen that was her Christmas tree and decorates it with apples and popcorn for the birds.

While the brothers are building a model of a dinosaur they call the "Martinandchrisaurus," Zoboo tells them he thinks he saw a dinosaur on his way to Animal Junction. The mystery creature turns out to be a monitor lizard. Jackie breaks open a pellet from an owl's stomach to see its prey's bones and fur inside, then runs into the Kratts while visiting the Royal Ontario Museum to see dinosaur bones.

A flying squirrel glides into Animal Junction in search of a hole to live in. Chris, Martin and Zoboo are glad to help, but find out a lot of the holes in Animal Junction already have occupants.

Animal Junction becomes Lemur Central when friends of Zoboo's, two ring tail lemurs, come for a visit. Zoboo is stunned to hear that most people don't know what a lemur is.

A couple of river otters arrive at Animal Junction and the gang gets in the swim of things. Everybody's swimming in the Junction: black jaguars, soft-shelled turtles, African penguins, capybaras, Kratts, and even Zoboo! Since otters love to slide almost as much as they like to swim, the gang builds a slide into the big pond, so the otters can do both.