The bears in Bear Country grow concerned about how pollution and waste of natural resources are damaging the world around them, so they form The Earthsavers Club.
When she spills her milk, Sister Bear uses a new word she heard on a video, and a surprised Mama Bear explains to her that some words are not polite to use.
The squabbling in the Bear household between parents and cubs subsides after Mama and Papa Bear and Brother and Sister Bear perform humorous role-playing skits.
When Mama announces that she is going to have a baby, Sister Bear is curious about where the baby came from and how it is going to get out of Mama's body.
Annoyed that Sister Bear always beats them at baseball and other "boy" type activities, her brother and other male cubs try to exclude her from their new club.