Jane, David, and Greybeard track a polar bear in the Arctic Circle, inspiring Jane to convince her neighbor Mr. Jin to see trash differently.

While trying to tag a great white shark, Jane urges David's dad and Tata to rethink how they shop for groceries.

David shrinks Jane and Greybeard to honeybee size to explore a hive. But when a schoolmate threatens the bees, Jane swoops in.

The trio take off on a mission to aid the flying fox when Greybeard accidentally parachutes into a neighbor's yard.

Jane, David, and Greybeard try to sniff out why the gharial has a bulbed snout. A day at the pool points Jane toward an answer.

The three friends travel deep into the ocean to figure out why the blue whale sings, and Jane confronts a litterbug with a gifted voice.

A bug-sized Jane and Greybeard follow a monarch butterfly's journey to Mexico, leading Jane to seek assistance from Mr. Patel's green thumb.

Jane, David, and Greybeard monitor a black rhino and a red-billed oxpecker, whose relationship teaches them the value of teamwork.

Chasing a herd of caribou stirs up David's appetite. At lunch, David's grandpa tells a story about respect, responsibility, and sharing.

Jane and David stay up past their bedtime to track a tiger that prefers to come out at night, and they stumble upon something in the garden shed.